一足歩行
Christenson, Allen J. (2007年). “Popul Vuh: Sacred Book of the Quiché Maya People” (PDF online publication). Mesoweb articles. Mesoweb: An Exploration of Mesoamerican Cultures. 2011年7月29日閲覧。
Freidel, David A.; Linda Schele; Joy Parker (1993). Maya Cosmos: Three Thousand Years on the Shaman's Path. New York: William Morrow & Co.. ISBN 0-688-10081-3. OCLC 27430287 Freidel, David A.; Linda Schele; Joy Parker (1993). Maya Cosmos: Three Thousand Years on the Shaman's Path. New York: William Morrow & Co.. ISBN 0-688-10081-3. OCLC 27430287 Freidel, David A.; Linda Schele; Joy Parker (1993).