Philippine Constitutional Convention of 1971

Historical marker created by the National Historical Commission of the Philippines to commemorate the 50th anniversary of the convention and installed inside the Manila Hotel.

The Philippine Constitutional Convention of 1971 was called to change the 1935 Constitution of the Philippines. The delegates were elected on November 10, 1970, and the convention itself was convened on June 1, 1971. It was marked by controversies, including efforts to uphold term limits for incumbent President Ferdinand Marcos, and a bribery scandal in which 14 people, including First Lady Imelda Marcos, were accused of bribing delegates to favor the Marcoses.

Marcos declared martial law in September 1972, and had 11 opposition delegates arrested. The remaining opposition delegates were forced to go either into exile or hiding. Within two months, an entirely new draft of the constitution was created from scratch by a special committee. The 1973 constitutional plebiscite was called to ratify the new constitution, but the validity of the ratification was brought to question because Marcos replaced the method of voting through secret ballot with a system of viva voce voting by "citizens' assemblies". The ratification of the constitution was challenged in what came to be known as the Ratification Cases.

Background

The 1935 Constitution

By the middle of the 1930s, the end of the American occupation of the Philippines was supposed to be in sight. In 1934 the US had approved a ten-year plan for the Philippines' transition from a commonwealth to a fully independent nation-state, based on the Jones Act of 1916. One of the preconditions for this independence was the creation of "a stable democratic government" based on the American model of governance, rather than being based on the French model as the Malolos Constitution had been. ^[1]

Although World War II interfered with the transition plan and a puppet constitution was put in place by the Japanese Imperial Army from 1943 until the defeat of the Japanese forces in 1944, the Philippines was granted independence on July 4, 1946. Upon independence, the 1935 constitution came into effect, featuring a government structure very similar to that of the United States: an executive branch with a President who could be elected to a maximum of two four-year terms; a bicameral legislature consisting of a congress and a senate; and an independent judicial branch. ^[1]

Campaign to change the 1935 Constitution

In 1967, the executive branch was headed by the tenth president, Ferdinand Marcos. Expressing opposition to the administration's policies and citing rising discontent over wide inequalities in society, ^[2] critics of Marcos began campaigning to change a constitution which they said had been written under the dominion of the country's former colonial overlords. ^[3] On March 16 of that year, the Philippine Congress constituted itself into a Constituent Assembly and passed Resolution No. 2, which called for a Constitutional Convention to change the 1935 Constitution. ^[4]

Marcos surprised his critics by endorsing the move, and it was later revealed that the resulting Constitutional Convention would lay the foundation for the legal justifications Marcos would use to extend his term past the two four-year terms allowable under the 1935 Constitution. ^[2]

Convention leadership and members

Main article: 1970 Philippine Constitutional Convention election

A special election was held on November 10, 1970, to elect the delegates of the convention. ^{[2] : "130"} Once the winners had been determined, the convention was convened on June 1, 1971, at the Manila Hotel ^[5] and was later transferred in 1972 to the then-newly completed Quezon City Hall. ^[6]

Former Philippine President Carlos P. Garcia was sworn in as the President of the Constitutional Convention on the day the convention was convened, but died thirteen days after taking oath. Former President Diosdado Macapagal replaced Garcia. ^[7] Sotero H. Laurel served as the President Pro-Tempore of the convention. ^[8]

A total of 320 delegates were elected to the convention, the most prominent being former senators Raul Manglapus and Roseller T. Lim. Other delegates would become influential political figures, including Hilario Davide, Jr., Marcelo Fernan, Sotero Laurel, Aquilino Pimentel, Jr., Teofisto Guingona, Jr., Raul Roco, Edgardo Angara, Richard Gordon, Margarito Teves, and Federico Dela Plana. ^{[2] [8]}

Delegates Elected to the 1971 Constitutional Convention, sorted according to Provincial District

Province	District	Delegates [8]
Abra	Lone District	Arturo V. Barbero Loreto L. Seares
Agusan del Norte	Lone District	Edelmiro A. Amante Antonio R. Tupaz
Agusan del Sur	Lone District	Lamberto M. Mordeno Vicente M. Guzman
Aklan	Lone District	Augusto B. Legaspi Godofredo P. Ramos
Albay	First District	Jose A. Madrilejos, Jr. Salvador C. Balane
	Second District	Domingo R. Imperial, Jr. Julian J. Locsin
	Third District	Efren R. Sarte Teresita D. Flores
Antique	Lone District	Angel Salazar, Jr. Arturo F. Pacificador
Bataan	Lone District	Jose R. Nuguid Armando L. Abad, Sr.
Batanes	Lone District	Custodio A. Villalva Geronimo M. Cabal
Batangas	First District	Felixberto M. Serrano Antonio de las Alas
	Second District	Honesto Mendoza Jose P. Leviste, Jr. Antonio C. Alano
	Third District	Sotero H. Laurel Artemio M. Lobrin Oscar L. Leviste
Benguet	Lone District	Floro R. Bugnosen Fernando Bautista
Bohol	First District	Natalio R. Castillo, Jr. Victor de la Serna
	Second District	Teogenes Borja Jose S. Zafra
	Third District	Carlos P. Garcia Simplico M. Apalisok
Bukidnon	Lone District	Dante Sarraga Luis R. Lorenzo Alfredo J. Lagamon
Bulacan	First District	Pablo S. Trillana III Dakila F. Castro Mateo A. T. Caparas
	Second District	Manuel C. Cruz Justino P. Hermoso Cesar B. Serapio Magtanggol C. Guinigundo
Cagayan	First District	Manuel T. Molina Jose T. Antonio Pedro N. Laggui
	Second District	Leoncio M. Puzon Oscar L. Lazo
Camarines Norte	First District	Rogelio E. Panotes Fernando S. Vinzons
Camarines Sur	First District	Raul S. Roco Ramon A. Diaz Antonio M. Sison
	Second District	Edmundo C. Cea Domingo M. Guevarra Eddie P. Alanis Lilia B. de Lima Felix R. Alfelor, Jr.
Camiguin	Lone District	Pedro P. Romualdo Antonio V. Borromeo
Catanduanes	Lone District	Clemente A. Abundo Rafael P. Santelices
Capiz	First District	Enrique M. Belo George H. Viterbo
	Second District	Dandy K. Tupaz Pedro G. Exmundo
Cavite	Lone District	Juanito R. Remulla Abraham F. Sarmiento Jose P. Santillan Alberto Jamir
Cebu	First District	Lydia D. Rodriguez Casimiro R. Madarang, Jr.
	Second District	Pedro L. Yap Marcelo B. Fernan Natalio B. Bacalso Jesus P. Garcia
	Third District	Napoleon G. Rama Antonio T. Bacaltos
	Fourth District	Oliveros E. Kintanar Hilario G. Davide, Jr.
	Fifth District	Jorge Kintanar Pedro B. Calderon
	Sixth District	Andres R. Flores Francis M. Zosa
	Seventh District	Antionio Y. de Pio Gerardo M. S. Pepito
Cotabato	Lone District	Midpantao L. Adil Linda U. Ampatuan Anacleto D. Badoy, Jr. Macario C. Camelo Jose M. Estaniel Michael O. Mastura Sandiale A. Sambalawan Duma D. Sinsuat Sergio F. Tocao Antionio R. Velasco
Davao del Norte	Lone District	Camilio L. Sabio Gaudioso R. Buen Lauro C. Arabejo Ramon A. Tirol
Davao del Sur	Lone District	Ismael I. Veloso Leon M. Garcia, Jr. Pedro S. Castillo Dominador F. Carillo Samuel C. Occeña Jesus V. Matas
Davao Oriental	Lone District	Adolfo A. Angala Antonio D. Olmedo
Eastern Samar	Lone District	Jaime C. Opinion Generoso A. Juaban
Ifugao	Lone District	Gaspar R. Ponchinlam Raymundo Baguilat
Ilocos Norte	First District	Antonio V. Raquiza Federico B. Ablan, Sr.
	Second District	Gregorio R. Paruganan Emerito M. Salva
Ilocos Sur	First District	Ramon S. Encarnacion Melchor G. Padua, Jr.
	Second District	Godofredo S. Reyes Eduardo Guirnalda
Iloilo	First District	Salvador B. Britanico Lourdes S. Trono
	Second District	Emilio M. de la Cruz II Oscar Ledesma
	Third District	Manuel C. Locsin Amanio Sorongon
	Fourth District	Ramon A. Gonzales Licurgo T. Tirador
	Fifth District	Sonia S. Aldeguer Juan V. Borra
Isabela	Lone District	Benjamin C. Reyes Heherson T. Alvarez Francisco B. Albano, Jr. Leocadio E. Ignacio Celso D. Gangan
Kalinga-Apayao	Lone District	Infante S. Calaycay Eubulo G. Verzola
Laguna	First District	Jose A. Yulo, Jr. Manuel A. Concordia Amado G. Garcia Vicente G. Hocson
	Second District	Estanislao A. Fernandez Rustico F. de los Reyes
Lanao del Norte	Lone District	Mariano Ll. Badelles Luis Quibranza Francisco L. Abalos
Lanao del Sur	Lone District	Ahmed Domocao Alonto Mangontawar B. Guro Lininding P. Pangandaman Oga M. Mapupuno Pangalian M. Balindong Tocod M. Macaraya
La Union	First District	Victor F. Ortega Pedro O. Valdez
	Second District	Antonio M. de Guzman
Leyte	First District	Cirilo Roy Montejo Eduardo Quintero
	Second District	Damian V. Aldaba Francisco A. Astilla
	Third District	Ramon V. Salazar Antero M. Bongbong
	Fourth District	Domingo Veloso Flor L. Sagadal
Manila	First District	Reynaldo T. Fajardo Salvador L. Mariño Fidel A. Santiago
	Second District	Roberto S. Oca Juan T. David
	Third District	Gerardo S. Espina Eduardo M. Sison Feliciano Jover Ledesma
	Fourth District	Carlos J. Valdez Jose P. Marcelo Antonio S. Araneta, Jr.
Marinduque	Lone District	Carmencita O. Reyes Ricardo G. Nepomuceno
Masbate	Lone District	Andres C. Clemente, Jr. Raul R. Estrella Mateo A. Esparrago, Jr. Venancio L. Yaneza
Mountain Province	Lone District	Willian Claver Felix Diaz
Northern Samar	Lone District	Emil L. Ong Cesar A. Sevilla
Nueva Ecija	First District	Romeo T. Capulong Rebeck A. Espiritu Ernesto R. Rondon
	Second District	Juan R. Liwag Emmanuel T. Santos Sedfrey A. Ordoñez Raymundo A. Padiernos
Nueva Vizcaya	Lone District	Jose D. Calderon Demetrio A. Quirino, Jr.
Occidental Mindoro	Lone District	Ricardo V. Quintos Honofre Restor
Oriental Mindoro	Lone District	Jose A. Leido Juan Luces A. Luna Amado S. Tolentino, Jr.
Occidental Misamis	Lone District	Timoteo C. Ruben Julio H. Osamis Elizabeth C. Johnston
Oriental Misamis	Lone District	Aquilino Pimentel, Jr. Rolando C. Piit Felino Neri Pablo S. Reyes
Occidental Negros	First District	Carlos Ledesma Rodolfo Gamboa Benito Montinola, Sr. Emmanuel G. Aguilar Ramon Hortinela, Jr. Romeo C. Gonzaga
	Second District	Arsenio B. Yulo, Jr. Carlos Hilado Loreto V. Valera
	Third District	Gregorio Tingson Plaridel G. Villadelgado Jacinto Montilla Juan G. Yulo
Oriental Negros	First District	Margarito Teves Gonzalo O. Catan, Jr. Vicente G. Sinco Cicero D. Calderon
	Second District	Emilio C. Macias II Felix G. Gaudiel, Sr.
Palawan	Lone District	Alfredo E. Abueg, Jr. Jose N. Nolledo
Pampanga	First District	Diosdado P. Macapagal Amado M. Yuzon Jose E. Suarez Fidel U. Canilao
	Second District	Amelito R. Mutuc Ricardo M. Sagmit Bren Z. Guiao
Pangasinan	First District	Mauro Baradi Jose F. S. Bengson, Jr.
	Second District	Luis C. Catubig Numeriano G. Tanopo, Jr.
	Third District	Ricardo B. Primicias Emiliano L. Abalos
	Fourth District	Reynaldo A. Villar Jose M. Aruego
	Fifth District	Felix M. Mamenta, Jr. Jesus M. Reyes
Quezon	First District	Rodolfo D. Robles Edgardo J. Angara Vincent L. Recto Leandro P. Garcia
	Second District	Gil G. Puyat, Jr. Cesar A. Caliwara Oscar F. Santos Benjamin M. Campomanes
Rizal	First District	Raul S. Manglapus Jesus G. Barrera Voltaire R. Garcia Salvador Z. Araneta Jose Concepcion, Jr. Jose Mari U. Velez Jose Y. Feria Augusto T. Kalaw Jose Ma. V. Paredes Miguel P. Cuaderno Sr. Teofisto T. Guingona, Jr. Leonardo Siguion Reyna Ceferino P. Padua Alejandro A. Lichauco Tomas C. Benitez Mary Rose J. Ezpeleta Augusto Caesar Espiritu Augusto L. Syjuco, Jr.
	Second District	Pacifico A. Ortiz Gilberto M. Duavit Emilio de la Paz, Jr. Francisco Sumulong Augusto Sanchez
Romblon	Lone District	Manuel F. Martinez Ernesto G. Ang
Samar	Lone District	Decoroso Rosales Romualdo R. Mendiola Ramon V. Mijares Valeriano C. Yancha
Sorsogon	First District	Pacifico F. Lim Bonifacio H. Gillego
	Second District	Jose L. Lachica Celso P. Tabuena
South Cotabato	Lone District	Rodolfo A. Ortiz Tomas T. Falgui Fidel P. Purisima Arturo P. Pingoy
Southern Leyte	Lone District	Gabriel O. Yñiguez Federico U. de la Plana
Sulu	Lone District	Jal M. Anni Tating Sangkula Benjamin Abubakar
Surigao del Norte	Lone District	Constantino M. Navarro, Jr. Fanny C. Garcia
Surigao del Sur	Lone District	Vicente L. Pimentel Eriberto B. Misa
Tarlac	First District	Mercedes C. Teodoro Homobono C. Sawit
	Second District	Jose Y. Feliciano Ramon M. Nisce
Zambales	Lone District	Richard J. Gordon Enrique J. Corpus Luis D. Santos
Zamboanga del Norte	Lone District	Augusto C. Saguin Adolfo S. Azcuna Ernesto S. Amatong
Zamboanga del Sur	Lone District	Vincenzo A. Sagun Roseller T. Lim Wilfredo G. Cainglet Antonio M. Ceniza Maria Clara L. Lobregat Teodoro C. Araneta Pedro M. Rodriguez, Jr. Ramon V. Blancia Benjamin A. Rodriguez

Proposal of "Ban Marcos" provisions

Even as far back as 1967, when the creation of the Constitutional Convention was proposed, opposition politicians feared that Marcos would use the convention as a way to stay in power beyond the two four-year terms allowed him by the 1935 Constitution. Because of these fears, the original resolution in congress which called for the convention had a provision that would have required the proposed new Constitution to have a provision preventing Marcos or his wife Imelda from running for office after the end of his term in 1973. ^{[2] : "132"} The provision was defeated in Congress by a narrow vote. ^[2]

Members of the opposition who were elected as Constitutional Convention delegates nevertheless proposed such "Ban the Marcoses" provisions during the deliberations of the convention. ^[2]

Soon after the Constitutional Convention was convened, 176 of the 206 delegates signed a resolution by delegate Napoleon Rama calling for a ban on the Marcoses. Later, the Committee on Suffrage and Election Reforms, chaired by Raul Manglapus, drafted a resolution ^[2] which read:

No person who has served as President of the Philippines shall be eligible to occupy the same office or that of chief minister or chief executive any time in the future, nor shall his spouse or relatives to the second degree by consanguinity or affinity be eligible to occupy the same office during any unexpired portion of his term or in one immediately succeeding term. ^[2]

Deliberations on these provisions dragged out due to partisan rambling, continuing until Marcos' declaration of martial law in September 1972. ^[2] Rama was put in jail along with 10 other members of the opposition bloc, while numerous others, including Manglapus, were forced into hiding or exile. They were dropped from the Marcos-sponsored final draft of the constitution which was approved by the convention in November 1972. ^{[2] [9]}

Eduardo Quintero's delegate bribery exposé

Already bogged down by politicking and delays, the credibility of the 1971 Constitutional Convention took a severe blow in May 1972 when a delegate exposed a bribery scheme in which delegates were paid to vote in favor of the Marcoses – with First Lady Imelda Marcos herself implicated in the alleged payola scheme. ^{[2] : "133"  [10]}

Ever since the convention was convened, the "progressive bloc" of the convention believed that Marcos was influencing the proceedings through the votes of delegates allied to the Marcoses and Imelda's family, the Romualdezes. ^[2] This suspicion was further strengthened on May 19, 1972, when Eduardo Quintero – a former Ambassador to the United Nations and the elected Constitutional Convention delegate for Leyte's first district – alleged that some of the delegates, including himself, had been receiving money from a "Money Lobby" in the convention. In his speech on the plenary, Quintero accused fellow delegates that were for the moment unnamed of bribing him P11,150 to vote in support of provisions that would prolong the political career of the Marcoses and against those that would hamper it. ^[10] The major provisions that would have greatly impacted the political surivival of the Marcos family were the proposals to a shift to parliamentarianism which would have enabled President Marcos to run as Prime Minister unhampered by the term limits set in the presidential system of the 1935 constitution as well as the "Ban Marcos" provisions of Napoleon Rama. Quintero himself was politically indebted to the Marcoses because he was elected with the aid of Imelda Marcos' brother, but he said that he finally wanted "to do the correct thing". ^{[10] [11]}

Quintero eventually released a three-page sworn statement that named 14 persons involved in the bribery scheme. The list included 12 of Quintero's fellow Convention delegates, the wife of delegate Artemio Mate, and Imelda Marcos. ^[12]

The exposé tainted the convention, angered the anti-Marcos opposition, and scandalized the country. Manila drivers plastered signs reading "Mabuhay Quintero!" ("Long Live Quintero!") on the sides of their cars in the days after Quintero's exposé. ^[2] Later historians ^[2] note that this would have jeopardized any efforts on Marcos' part to hold on to power beyond the two four-year terms allowed him by the 1935 Constitution, but the social unrest brought about by Marcos' 1970 debt crisis enabled him to stay in power anyway – by declaring martial law. ^[2]

September 1972 bombing

On September 18, 1972, the convention was targeted by one of the last 1972 Manila bombings – about 20 explosions in various locations in Metro Manila in the months after the Plaza Miranda bombing and immediately preceding Marcos' declaration of martial law. ^{[6] [2]}

Arrest of opposition delegates

Main article: Martial law under Ferdinand Marcos

The work of the convention was affected by the declaration of martial law in September 1972 by President Marcos. The military units assigned to implement the law were given a list of 400 individuals to arrest, consisting mostly of outspoken critics of Marcos' administration. This included a number of members of the Constitutional Convention. ^[2]

Some of the individuals on the list, such as Raul Manglapus, ^[13] were either not in the Philippines when martial law was declared, while some, such as Raul Roco, were in the country but managed to evade arrest. ^[9] However, numerous members of the Constitutional Convention's opposition bloc were among those arrested in the early hours of September 22, 1972. ^{[2] : "157"  [14] [15] [16]} Convention delegates immediately arrested after the proclamation of martial law included: ^{[9] : 37}

• Napoleon Rama , who was also associate editor of the Philippines Free Press
• Jose Mari Velez , who was also an ABS-CBN broadcaster
• Bren Guiao
• Natalio Bacalzo
• Jose "Joecon" S. Concepcion Jr.
• Ernesto Rondon
• Jose "Pepito" Nolledo
• Teofisto "Tito" Guingona Jr.
• Alejandro "Ding" Lichuaco
• Voltaire Garcia and George Viterbo, who were later released

As recounted by oppositionist Convention delegate Caesar Espiritu, officials privy to variations of the priority arrest list eventually informed them which other Convention delegates had been put on the list. Aside from those actually arrested, one "shortlist" of 12 delegates identified six other delegates: Sonny Alvarez, Antonio "Tonypet" Araneta, Romy Capulong, Boni Gillego, Raul Manglapus, and Raul Roco. (Among those actually arrested, this list named Garcia, Guiao, Lichauco, Rama, Rondon, and Velez.) ^{[9] : 39}

The longest list the convention delegates were able to piece together listed a total of 32 delegates, identifying Bacalzo, Guingona, Concepcion, Nolledo, and Viterbo who were all arrested, and additionally mentioned "Delima (the only girl), Occeña, Badoy, Sanchez, the Espiritu brothers, Pepe Calderon, Kalaw, Father Ortiz, and Amatong". ^{[9] : 39}

With nearly a dozen of its members in jail and some of its most prominent leaders overseas or in hiding, the "progressive faction" of the convention which spoke against Marcos was no longer able to contribute to the discussion. ^[2]

Revised new draft Constitution

In contrast to the slow, contentious deliberations that marked its early days, the Convention moved quickly after Marcos had declared martial law. The opposition bloc had effectively been decimated and the threat of imprisonment hung over any delegates who might voice opposition in the convention. Macapagal thus allowed the regular rules of the convention to be suspended so that a 166-member group headed by Marcos-supporting delegate Gilberto Duavit came up with a new draft of the Constitution. ^[16]

By November 29, 1972, a little over two months after the declaration of martial law, the Convention approved the draft, with Macapagal "reluctantly putting his signature" on a document that would give so much power to Marcos. ^[9] It was presented to Marcos at the Malacañang palace on December 1, 1972, marking the end of the Constitutional Convention's task. ^[16]

1973 constitutional plebiscite and the Ratification Cases

Main article: Ratification Cases

On January 5, 1973, Marcos, who had seized legislative power as part of his declaration of martial law, issued Presidential Decree No. 86-A, an addendum to the Revised Barrio Charter (Presidential Decree No. 86) which he had signed in late December to reconstitute Philippine barrios (villages) into a new structure called a "barangay". ^[17] Presidential Decree No. 86-A cancelled the election plebiscite in which Philippine citizens would have voted whether or not to ratify the new Constitution. Instead, the 1973 Constitution would be ratified using "Citizen's Assemblies". ^[18]

The Constitution was supposedly presented for the people's ratification in the 1973 constitutional plebiscite, ^[2] where the Citizen's Assemblies supposedly showed their assent through viva voce votation. ^{[19] : 213} Due to the lack of reportage accompanying the gagging of the Philippine press during martial law, there are no reliable records of how many citizens actually participated in these assemblies. ^[2] The results of the plebiscite were thus questioned before the Philippine Supreme Court in what came to be known as the Plebiscite Cases (Planas v. COMELEC (1973)), and the legality of the 1973 Constitution questioned in what came to be known as the Ratification Cases (Javellana v. Executive Secretary). ^{[20] [21]}

In the Ratification Cases, six of the 10 members of the court (the Chief Justice, and Justices Makalintal, Zaldivar, Castro, Fernando, and Teehankee) said that the 1973 Constitution had not been ratified validly. But Justices Makalintal and Castro said that the people had acquiesced to the 1973 Constitution whether or not the ratification was valid, saying that the question of whether the Constitution could be invalidated was a political determination and not a judicial one. The Constitution was thus effectively upheld. ^{[20] [21]}

Marcos would continue to rule as a dictator until being ousted by the People Power Revolution in 1986. ^[2]

See also

• Timeline of the Marcos dictatorship
• 1970 Philippine Constitutional Convention election
• Ratification Cases

References

1. "Constitutional history of the Philippines". ConstitutionNet. Retrieved July 25, 2018.
2. Magno, Alexander R., ed. (1998). "Democracy at the Crossroads". Kasaysayan, The Story of the Filipino People Volume 9:A Nation Reborn. Hong Kong: Asia Publishing Company Limited.
3. Bautista, Andy (October 11, 2014). "Chartering change (II)". The Philippine Star. Retrieved July 25, 2018.
4. R.E.Diaz. "G.R. No. L-32432 – Manuel B. Imbong vs. Jaime Ferrer". www.chanrobles.com. Retrieved July 25, 2018.
5. "Republic Act No. 6176". lawlibrary.chanrobles.com. Retrieved January 29, 2024.
6. Pedroso, Kate; Generalao, Minerva (September 21, 2016). "September 1972: Recalling the last days and hours of democracy" . Retrieved October 20, 2018.
7. "The election for the Presidency of the 1971 Constitutional Convention". Official Tumblr page of the Presidential Museum and Library. Archived from the original on April 16, 2015. Retrieved April 16, 2015.
8. De Leon, Hector S.; Lugue, Emilio Jr. E. (1984). Textbook on the new Philippine Constitution. Rex Book Store.
9. Espiritu, Augusto Caesar (1993). How democracy was lost: a political diary of the Constitutional Convention of 1971-1972. Quezon City: New Day Publishers. ISBN   9711005336. OCLC   31066221.
10. "QUINTERO, Eduardo T. – Bantayog ng mga Bayani". Bantayog ng mga Bayani. May 16, 2016. Retrieved June 2, 2018.
11. Tasyo, Pilosopong (August 29, 2017). "Pilosopong Tasyo speaks ...: THE QUINTERO EXPOSE". Pilosopong Tasyo speaks ... Retrieved September 22, 2021.
12. "Looking Back: The 1971 Constitutional Convention". Newsbreak. February 17, 2003. Archived from the original on May 24, 2018. Retrieved June 2, 2018.
13. Weil, Martin (July 26, 1999). "Raul S. Manglapus, Former Foreign Secretary of Philippines, Dies at 80". Washington Post. ISSN   0190-8286 . Retrieved July 25, 2018.
14. "The intrepid 18, two times over". Bicol Mail. July 27, 2017. Archived from the original on July 22, 2018. Retrieved July 22, 2018.
15. Duka, Cecilio D. (2008). Struggle for freedom: a textbook on Philippine history (1st ed.). Manila: Rex Book Store. ISBN   9789712350450. OCLC   958017661.
16. "In 1971 and 2006, new Charters designed to keep embattled presidents in power". Philippine Center for Investigative Journalism Website. May 1, 2006. Archived from the original on July 25, 2018. Retrieved July 25, 2018.
17. "Presidential Decree No. 86 December 31, 1972". The LAWPHIL Project.
18. "Presidential Decree No. 86-A January 5, 1973". The LAWPHIL Project.
19. Graham., Hassall; Saunders, Cheryl (2002). Asia-Pacific constitutional systems. Cambridge: Cambridge University Press. ISBN   9780511549960. OCLC   715166703.
20. Bernas, Joaquin (2003). The 1987 Constitution of the Republic of the Philippines: a Commentary. Rex Book Store, Manila
21. Cruz, Isagani A. (2000). Res Gestae: A Brief History of the Supreme Court. Rex Book Store, Manila