Macfarlan, Shane J., and Celeste N. Henrickson. "Inferring Relationships Between Indigenous Baja California Sur and Seri/Comcáac Populations Through Cultural Traits." Journal of California and Great Basin Anthropology 30, no. 1 2010: 51-67. https://native-land.ca/wp/wp-content/uploads/2018/06/Guaycura-and-other-Southern-California-Peoples.pdf.