1. Aldenderfer, Mark, 1999, The Pleistocene/Holocene transition in Peru and its effects upon human use of the landscape. Quaternary International 53/54: 11–19.
2. Babot, María de Pilar, 2004, Tecnología y Utilización de Artefactos de Molienda en el Noroeste Prehispánico. Tesis Doctoral. Universidad Nacional de Tucumán, Argentina.
3. Bonzani, Renee M., 1998, Learning from the present. Constraints of plant seasonality on foragers and collectors. In Recent Advances in the Archaeology of the Northern Andes, edited by Augusto Oyuela-Caycedo and J. Scott Raymond, pp. 20–35. Institute of Archaeology, UCLA.
4. Bruno, Maria C. and William T. Whitehead, 2003, Chenopodium cultivation and Formative Period agriculture at Chiripa, Bolivia. Latin American Antiquity 14: 339–355.
5. Denevan, William M., 2001, Cultivated Landscapes of Native Amazonia and the Andes. Oxford University Press, Oxford.