^Dieter Nohlen (2005) Elections in the Americas: A data handbook Vol. 1 Oxford University Press, p287
^Franklin D. Parker (1981) The Central American republics Westport: Greenwood Press, p152
^Kenneth Ruddle, Philip Gillette & Philip S. Gillette (1972) Latin American Political Statistics: Supplement to the Statistical Abstract of Latin America, p86
Bibliography
Krehm, William (1957) Democracia y tiranias en el Caribe Buenos Aires: Editorial Parnaso
Larde y Larin, Jorge (1958) Guía histórica de El Salvador San Salvador: Ministerio de cultura
Herman, Edward S. and Frank Brodhead (1984) Demonstration elections: U.S.-staged elections in the Dominican Republic, Vietnam, and El Salvador Boston: South End Press
Political Handbook of the world, 1945 New York, 1946
Webre, Stephen (1979) José Napoleón Duarte and the Christian Democratic Party in Salvadoran Politics 1960-1972 Baton Rouge: Louisiana State University Press