- Author: Calero Francisco, Guevara Antonio de
- Language: Spanish
- Year: 2019
- Author: Calero Francisco
- Language: Spanish
- Year: 2010
- Author: Calero Francisco
- Language: Spanish
- Year: 2017
- Author: Coral Calero, Francisco Ruiz, Mario Piattini
- Language: English
- Year: 2006
- Author: Coral Calero Francisco Ruiz Mario Piattini
- Language: English
- Year: 2006
- Author: Coral Calero Francisco Ruiz Mario Piattini
- Language: English
- Year: 2006