- Author: Portocarrero Maisch, Carolina Trivelli, Javier Alvarado
- Language: Spanish
- Year: 2002
- Author: Lidia Girola Molina, Gonzalo Portocarrero Maisch, Kathya Araujo
- Language: Spanish
- Year: 2009
- Author: Gonzalo Portocarrero Maisch
- Language: Spanish
- Year: 2010
- Author: Goznalo Portocarrero Maisch
- Language: Spanish
- Year: 2015
- Author: Portocarrero Maisch Gonzalo
- Language: Spanish
- Year: 2012