^Dehlinger, Johanna (2009). Architecture - Design Methods - Inca Structures. Festschrift for Jean-Pierre Protzen. kassel university press GmbH. p. 121. ISBN9783899586695.
^Nair, Stella (2015). At Home with the Sapa Inca: Architecture, Space, and Legacy at Chinchero. University of Texas Press. pp. 37, 157, 158. ISBN9781477302507.
^Manzanilla, Linda R.; Rothman, Mitchell (2016). Storage in Ancient Complex Societies: Administration, Organization, and Control. Routledge. pp. 178, 179, 182, 183. ISBN9781315520964.
^Protzen, Jean-Pierre (2005). Arquitectura y construcción incas en Ollantaytambo (in Spanish). Fondo Editorial de la Pontifica Universidad Católica del Perú. p. 146. ISBN9789972427022.
^Areshian, Gregory E. (2013). Empires and Diversity: On the Crossroads of Archaeology, Anthropology, and History. ISD LLC. p. 224. ISBN9781938770517.
^Teofilo Laime Ajacopa, Diccionario Bilingüe Iskay simipi yuyk'ancha, La Paz, 2007(Quchua-Spanish 사전)