- Author: Roberta Henriques Ragi Cordeiro
- Language: Portuguese
- Year: 2008
- Author: Klaus Zimmermann (ed.) Michel Launey Carlos Hernández Sacristán Una Canger Manfred Ringmacher Klaus Zimmermann Cristina Monzón Ursula Thiemer-Sachse Cristina Bredt-Kriszat Ursula Holl Rodolfo Cerrón-Palomino Willem Adelaar Alfredo Torero Sabine Dedenbach-Salazar Sáenz Julio Calvo Peter Masson Aryon Rodrigues Daniele Marcelle Grannier Rodrigues Christiane Diimmler Miguel Meléndez (auts.)
- Language: Spanish
- Year: 1997
- Author: César Itier, Zenobio Ortiz Cárdenas
- Language: Spanish, Quechua
- Year: 2019
- Author: Antonio Cusihuamán
- Language: Quechua, Spanish
- Year: 1976
![book Introducción al quichua de la sierra central del Ecuador o El quechua en diez lecciones fáciles (las otras 40 son más difíciles) = Introduction to Central Highland Quichua of Ecuador or Quichua in ten easy lessons (the other 40 are harder) [1963]](/covers/files_170/2930000/20123b78b317fc383a8888d9b2b18915-g.jpg)
- Author: Ellen M. Ross, Ricardo Asehmann (transl.)
- Language: Spanish English, Quechua
- Year: 2017
- Author: Nila Vigil, Roberto Zariquiey
- Language: Quechua, Spanish
- Year: 2004
- Author: Rodolfo Cerrón-Palomino
- Language: Spanish, Quechua
- Year: 1987
- Author: Augusto Escribens
- Language: Spanish, Quechua
- Year: 1977
- Author: Rodolfo Cerrón-Palomino
- Language: Quechua, Spanish
- Year: 1980