Alfonso Caso, "El Mapa de Teozacoalco," Cuadersnos Americanos, A├▒o VIII 5 (1949).
Mary Elizabeth Smith, Picture Writing in Ancient Southern Mexico: Mixtec Place Signs and Maps, Civilization of the American Indian Series 124 (Norman: University of Oklahoma Press, 1973) 55-57.
Raul Alavez, Toponimia Mixteca (México: Centro de Investigaciones y Estudios Superiores en Antropología Social, 1988) 57.