1. Abramson, Paul, John Aldrich, et al. 2010. Comparing Strategic Voting Under FPTP and PR. Comparative Political Studies 43 (1): 61–90.
2. Abramson, Paul, and Ronald Inglehart. 1995. Value Change in Global Perspective. Ann Arbor: University of Michigan Press.
3. Adelman, Jeremy. 2006. Unfinished States: Historical Perspectives on the Andes. In State and Society in Conflict: Comparative Perspectives on Andean Crises, ed. Paul Drake and Eric Hershberg. Pittsburgh: Pittsburgh University Press.
4. Agencia EFE. 2016. Guzman lidera una manifestacion en protesta contra el fallo adverso a su candidatura. March 4.
5. Alcantara, Manuel. 2004. Instituciones o Maquinas Ideológicas? Origen, Programa y Organización de los Partidos Políticos Latinoamericanos. Barcelona: Institut de Ciences Politiques y Socials.