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- Language: Quechua
- Year: 2007
![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: Pedro P. Guala Ch.
- Language: Quechua
- Year: 1982
- Author: Virginia Zavala, Luis Mujica, Gavina Córdova, Wilfredo Ardito
- Language: Spanish, Quechua
- Year: 2014
- Author: Nila Vigil, Roberto Zariquiey
- Language: Quechua, Spanish
- Year: 2004