- Author: Nora Siegrist de Gentile, María Haydee Martin
- Language: Spanish
- Year: 1981
- Author: Hegel Georg Wilhelm Friedrich
- Language: Spanish
- Year: 1983
- Author: Carlos Domâinguez
- Language: Spanish
- Year: 2009
- Author: Emilio Ribes José Burgos
- Language: Spanish
- Year: 2006
- Author: José Miguel Marín Antuña
- Language: Spanish
- Year: 2014
- Author: Carlos Meléndez (coord.)
- Language: Spanish
- Year: 1971
- Author: Carlos Meléndez Chaverri
- Language: Spanish
- Year: 1974
- Author: Arturo Manuel Arias Sánchez
- Language: Spanish
- Year: 2013
- Author: Reinaldo Carcanholo
- Language: Spanish
- Year: 1981
- Author: Teresa San Segundo Manuel
- Language: Spanish