Schmal، John P. (2004). "The History of the Tlaxcalans". Houston Institute for Culture. Houston: Houston Institute for Culture. مؤرشف من الأصل في 2019-05-13.
"Geografia" (بالإسبانية). Tlaxcala: State of Tlaxcala. Archived from the original on 2006-10-24. Retrieved 2009-08-15.
web.archive.org
"Geografia" (بالإسبانية). Tlaxcala: State of Tlaxcala. Archived from the original on 2006-10-24. Retrieved 2009-08-15.
Schmal، John P. (2004). "The History of the Tlaxcalans". Houston Institute for Culture. Houston: Houston Institute for Culture. مؤرشف من الأصل في 2019-05-13.