Villamar Becerril Enrique, “Estudios de ADN y el origen de los olmecas", Arqueología Mexicana, núm. 150, pp. 40–41.(2019)[2]Archived 27 February 2021 at the Wayback Machine
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harvard.edu
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Hirth, Kenneth; Cyphers, Ann; Cobean, Robert; De León, Jason; Glascock, Michael D. (2013). "Early Olmec obsidian trade and economic organization at San Lorenzo". Journal of Archaeological Science. 40 (6): 2784–2798. Bibcode:2013JArSc..40.2784H. doi:10.1016/j.jas.2013.01.033.
jstor.org
Hepp, Guy David. "Interaction and Exchange in Early Formative Western and Central Mesoamerica: New Data from Coastal Oaxaca.” Interregional Interaction in Ancient Mesoamerica, edited by Joshua D. Englehardt and Michael D. Carrasco, University Press of Colorado, 2019, pp. 51–82. JSTOR, http://www.jstor.org/stable/j.ctvkjb2qb.7. Accessed 18 Nov. 2024.
Villamar Becerril Enrique, “Estudios de ADN y el origen de los olmecas", Arqueología Mexicana, núm. 150, pp. 40–41.(2019)[2]Archived 27 February 2021 at the Wayback Machine