Milbrath, Susan. Star Gods of the Maya: Astronomy in Art, Folklore, and Calendars. The Linda Schele series in Maya and pre-Columbian studies. Austin: University
of Mesoamerican Mythology. Oxford: ABC-CLIO. ISBN 1-85109-340-0. OCLC 43879188. Read, Kay Almere; and Jason González (2002). Handbook of Mesoamerican Mythology:
Milbrath, Susan. Star Gods of the Maya: Astronomy in Art, Folklore, and Calendars. The Linda Schele series in Maya and pre-Columbian studies. Austin: University
Problem in Mesoamerican Archaeology and Art History. Twin Tollans: Chichén Itzá, Tula, and the Epiclassic to Early Postclassic Mesoamerican World. Washington