- Author: María Azucena Penas Ibáñez
- Language: Galician
- Year: 2009
- Author: Luis Alberto Hernando Cuadrado (editor), M.ª Azucena Penas Ibáñez (editor)
- Language: Spanish
- Year: 2020
- Author: Cuadrado Luis Alberto Hernando, M.a Azucena Penas Ibáñez
- Language: Spanish
- Year: 2020
- Author: María Azucena Penas Ibáñez
- Language: Spanish
- Year: 2009
- Author: María Azucena Penas Ibáñez
- Language: Spanish
- Year: 2009