-— Alice Peeters - Controverses sur les vertus du cacao et les manières de préparer le chocolat (XVIe-XVIIIe siècles) - Journal d'agriculture traditionnelle et de botanique appliquée Année 1979 26-3-4 pp. 201-216

https://www.persee.fr/doc/jatba_0183-5173_1979_num_26_3_3801

-—  Caroline Seawright - Life, Death and Chocolate in Mesoamerica: The Aztecs and the Maya; Where did the Ritual Use of Cacao Originate ?  juin 2012

https://www.researchgate.net/publication/274837640_ARC2AZT_Essay_Life_Death_and_Chocolate_in_Mesoamerica_The_Aztecs_and_the_Maya_Where_did_the_Ritual_Use_of_Cacao_Originate

— Simon Martin - Cacao in Ancient Maya Religion First Fruit from the Maize Tree and other Tales from the Underworld

https://www.mesoweb.com/about/martin/Martin_2006_Cacao.pdf