* {{cita libro |autor={{autVersalita|Adams, Richard E.W.}} |year=1996 |title=Prehistoric Mesoamerica |edition=Revised|location=Norman |publisher=University of Oklahoma Press |isbn=0-8061-2834-8 |oclc=22593466}}
* {{Cita web |autor={{autVersalita|Urcid, Javier}} |year=2005 |title=Zapotec Writing: Knowledge, power, and memory in ancient Oaxaca |url=http://www.famsi.org/zapotecwriting/zapotec_text.pdf |format=[[PDF]] |publisher=Foundation for the Advancement of Mesoamerican Studies, Inc.|Foundation for the Advancement of Mesoamerican Studies (FAMSI), Inc |accessdate=2009/02/18}}