Schmal, John. Oaxaca: a land of diversity // Houston Institute for Culture, 2006. Посетен на 3 май 2011. ...sometime around A.D. 800, Monte Albán was suddenly abandoned. Some archaeologists have suggested that this move took place because the local resources of food and the fertility of the slopes had been severely depleted.
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Feinman, Gary M. и др. Houses on a hill: classic period life at El Palmillo, Oaxaca, Mexico // Latin American Antiquity 13 (3). 2002 – 09. с. 251 – 77. Посетен на 3 май 2011. ...the terraces and their associated domestic compounds at El Palmillo underwent a series of coordinated episodes of wall construction, repair, and spatial modification. Craft activities-especially the production of chipped stone tools and maguey fiber for cordage and cloth-were an important part of domestic life. The relative importance of these different household economic activities varied from terrace to terrace, indicating that domestic production was specialized and operated at the household level.