- Author: Eduardo Pizarro Leóngomez
- Language: Spanish
- Year: 1991
- Author: Hernando García Barriga
- Language: Spanish
- Year: 1992
- Author: Germán Colmenares
- Language: Spanish
- Year: 1999
- Author: Anwar Shaikh
- Language: Spanish
- Year: 1990
- Author: Germán Colmenares
- Language: Spanish
- Year: 1997
- Author: Germán Colmenares
- Language: Spanish
- Year: 1997
- Author: Eduardo Pizarro Leongomez
- Language: Spanish
- Year: 1996
- Author: Absalón Machado
- Language: Spanish
- Year: 1988
- Author: José Antonio Ocampo
- Language: Spanish
- Year: 1996