Andrews, J. Richard(2003)Workbook for Introduction to Classical Nahuatl, rev. ed. edition, Norman: University of Oklahoma Press, page214
Chimalpahin Quauhtlehuanitzin, Domingo Francisco de San Antón Muñón(1997), Arthur J. O. Anderson; Susan Schroeder, transl.,Codex Chimalpahin, Norman: University of Oklahoma Press, pages vol. 1, pp. 60–61
Karttunen, Frances(1983)An Analytical Dictionary of Nahuatl, Austin: University of Texas Press, page40
Lockhart, James(2001)Nahuatl as Written: Lessons in Older Written Nahuatl, with Copious Examples and Texts, Stanford: Stanford University Press, page215