Goméz, Esteban Montes. "Map representing the linguistic diversity that existed in Central America and the Gulf of Fonseca at the time of contact with the Spanish" IN Archaeology of the Colonial Period Gulf of Fonseca, Eastern El Salvador" PhD Diss. University of California, Berkeley. 2010. pg. 26 https://escholarship.org/content/qt3h6908bz/qt3h6908bz_noSplash_63ed1d6868d6a9d562c348d2708ea5fb.pdf