Copei (English Wikipedia)

Mainwaring, Scott; Scully, Timothy, eds. (2003). Christian Democracy in Latin America: Electoral Competition and Regime Conflicts. Stanford, California: Stanford University Press. p. 81. ISBN 0-8047-4598-6.
Crisp, Brian F.; Levine, Daniel H.; Molina, Jose E. (2003), "The Rise and Decline of COPEI in Venezuela", Christian Democracy in Latin America: Electoral Competition and Regime Conflicts, Stanford University Press, p. 275, ISBN 9780804745987

brown.edu

Linares, Rodrigo (2017-03-27). "Requiem for COPEI". Caracas Chronicles. Retrieved 2019-09-13.

Corrales, Javier (2001-01-01). "Strong Societies, Weak Parties: Regime Change in Cuba and Venezuela in the 1950s and Today". Latin American Politics and Society. 43 (2): 81–113. doi:10.2307/3176972. JSTOR 3176972.
Karl, Terry Lynn (1987-01-01). "Petroleum and Political Pacts: The Transition to Democracy in Venezuela". Latin American Research Review. 22 (1): 63–94. doi:10.1017/S0023879100016435. JSTOR 2503543. S2CID 252930082.
Buxton, Julia (2005-07-01). "Venezuela's Contemporary Political Crisis in Historical Context". Bulletin of Latin American Research. 24 (3): 328–347. doi:10.1111/j.0261-3050.2005.00138.x. ISSN 1470-9856.
Musil, Pelin Ayan (2015-01-02). "Emergence of a Dominant Party System After Multipartyism: Theoretical Implications from the Case of the AKP in Turkey". South European Society and Politics. 20 (1). Taylor & Francis: 71–92. doi:10.1080/13608746.2014.968981. ISSN 1360-8746. S2CID 219697348. another example is the PSUV in Venezuela, which served in government as a single party for 14 years following a period of multi-party politics. After the death of the charismatic party leader, Hugo Chavez, the PSUV had a new leader, yet managed to form a single-party government again in 2013.

"Jóvito Villalba, URD y Margarita". El Sol de Margarita. 2009-02-12. Archived from the original on 2009-02-12. Retrieved 2019-09-13.

"Venezuela's 1998: Presidential, Legislative, and Gubernatorial Elections: Election Observation Report" (PDF). Election Observation Report. International Republican Institute. 12 February 1999. p. 12. Archived from the original (PDF) on 4 September 2015. Retrieved 17 February 2015. Voter turnout rose significantly in the 1998 elections, reversing a two-decade trend toward lower participation.

Corrales, Javier (2001-01-01). "Strong Societies, Weak Parties: Regime Change in Cuba and Venezuela in the 1950s and Today". Latin American Politics and Society. 43 (2): 81–113. doi:10.2307/3176972. JSTOR 3176972.
Karl, Terry Lynn (1987-01-01). "Petroleum and Political Pacts: The Transition to Democracy in Venezuela". Latin American Research Review. 22 (1): 63–94. doi:10.1017/S0023879100016435. JSTOR 2503543. S2CID 252930082.

Karl, Terry Lynn (1987-01-01). "Petroleum and Political Pacts: The Transition to Democracy in Venezuela". Latin American Research Review. 22 (1): 63–94. doi:10.1017/S0023879100016435. JSTOR 2503543. S2CID 252930082.
Musil, Pelin Ayan (2015-01-02). "Emergence of a Dominant Party System After Multipartyism: Theoretical Implications from the Case of the AKP in Turkey". South European Society and Politics. 20 (1). Taylor & Francis: 71–92. doi:10.1080/13608746.2014.968981. ISSN 1360-8746. S2CID 219697348. another example is the PSUV in Venezuela, which served in government as a single party for 14 years following a period of multi-party politics. After the death of the charismatic party leader, Hugo Chavez, the PSUV had a new leader, yet managed to form a single-party government again in 2013.

"Jóvito Villalba, URD y Margarita". El Sol de Margarita. 2009-02-12. Archived from the original on 2009-02-12. Retrieved 2019-09-13.
"Venezuela's 1998: Presidential, Legislative, and Gubernatorial Elections: Election Observation Report" (PDF). Election Observation Report. International Republican Institute. 12 February 1999. p. 12. Archived from the original (PDF) on 4 September 2015. Retrieved 17 February 2015. Voter turnout rose significantly in the 1998 elections, reversing a two-decade trend toward lower participation.
"Elecciones 30 de Julio de 2000 VOTOS DIPUTADOS LISTAS A LA ASAMBLEA NACIONAL" (PDF). National Electoral Council (Venezuela). Archived (PDF) from the original on 2017-08-05.

Salojärvi, Virpi (2016). The Media in the Core of Political Conflict: Venezuela During the Last Years of Hugo Chávez's Presidency (PDF). p. 30. ISBN 978-951-51-1092-3. ISSN 2343-2748.
Buxton, Julia (2005-07-01). "Venezuela's Contemporary Political Crisis in Historical Context". Bulletin of Latin American Research. 24 (3): 328–347. doi:10.1111/j.0261-3050.2005.00138.x. ISSN 1470-9856.
Musil, Pelin Ayan (2015-01-02). "Emergence of a Dominant Party System After Multipartyism: Theoretical Implications from the Case of the AKP in Turkey". South European Society and Politics. 20 (1). Taylor & Francis: 71–92. doi:10.1080/13608746.2014.968981. ISSN 1360-8746. S2CID 219697348. another example is the PSUV in Venezuela, which served in government as a single party for 14 years following a period of multi-party politics. After the death of the charismatic party leader, Hugo Chavez, the PSUV had a new leader, yet managed to form a single-party government again in 2013.