Kashanipour, R., and Patricia Netherly. “Food in Latin America.” Encyclopedia of Pre-Colonial Latin America (Prehistory to 1550s), Facts On File, 2017. History Research Center, online.infobase.com/Auth/Index?aid=171442&itemid=WEHRC&articleId=213972
Jones, Martin, Harriet Hunt, Emma Lightfoot, Diane Lister, Xinyi Liu, and Giedre Motuzaite-Matuzeviciute. “Food Globalization in Prehistory.” World Archaeology 43, no. 4 (2011): 665–75. http://www.jstor.org/stable/23210490
Lebot, V.. Tropical Root and Tuber Crops : Cassava, Sweet Potato, Yams and Aroids, CABI, 2008. ProQuest Ebook Central, https://ebookcentral.proquest.com/lib/penncharter/detail.action?docID=455759 SEE CHAPTER ABOUT SWEET POTATO
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