1. Andrle, Robert F. 1964. A Biogeographical Investigation of the Sierra de los Tuxtla in Veracruz, Mexico. Unpublished PhD dissertation. Department of Geography and Anthropology, Louisiana State University, Baton Rouge.
2. Arnold, Philip J., III. 1999. Tecomates, Residential Mobility, and Early Formative Occupation in Coastal Lowland Mesoamerica. In Pottery and People, edited by J.M. Skibo and G.M. Feinman, pp. 159–170. University of Utah Press, Salt Lake City, UT.
3. Arnold, Philip J., III. 2000. Sociopolitical Complexity and the Gulf Olmecs: A view from the Tuxtla Mountains. In Olmec Art and Archaeology in Mesoamerica, edited by J.E. Clark and M.E. Pye, pp. 117–135. Yale University Press, New Haven, CT.
4. Arnold, Philip J., III. 2002. La cronología interna de La Joya. In En La Sombra del San Martin: Informe Final del Proyecto Arqueologica La Joya, edited by P.J. Arnold III and V.M. McCormack, pp. II. B-1–II. B-17. Report submitted to the Instituto Nacional de Antropología e Historia, Mexico, D.F.
5. Arnold, Philip J., III. 2003. Early Formative Pottery from the Tuxtla Mountains and Implications for Gulf Olmec Origins. Latin American Antiquity 14(1):29–46.