Padre Barnabe CoboHistory of the Inca Empire: An Account of the Indians' Customs and Their Origin, Together with a Treatise on Inca Legends, History, and Social Institutions (em inglês) University of Texas Press, 2010 p 122 ISBN 9780292789807
Ugo StornaioloEcuador : anatomía de un país en transición (em castelhano) Editorial Abya Yala, 1999 p. 62 ISBN 9789978045541
Thomas B. F. Cummins, Barbara AndersonThe Getty Murua :Essays on the Making of Martin de Murua's "Historia General del Piru"(em inglês) Getty Publications, 2008 p. 49 ISBN 9780892368945