== Références ==
*Brian Stross, Mesoamerican Copal Resins, U-Mut Maya, 1997, vol. 6, p. 177-186. [[:en:Copal (Stross)|sur Pl@ntUse]] et sur [https://web.archive.org/web/20150212150136/http://www.utexas.edu/courses/stross/papers/copal.htm WaybackMachine].
*Breedlove, D.E. & Laughlin, R.M., 1993. The flowering of Man : a Tzotzil botany of Zincantán. ''Smithsonian Contributions to Anthropology'', 35.
*Howes, F.N., 1949. The copals. pp. 93-103. In ''Vegetable Gums and Resins''. 188 p. Waltham, USA, Chronica Botanica.
*Purata, S.E. (Ed.), 2008. Uso y manejo de los copales aromáticos: resinas y aceites. CONABIO/RAISES. i-60, 60 páginas, México.
*Ryan, J. Case ''et al.'', 2003. Chemistry and Ethnobotany of Commercial Incense Copals, Copal Blanco, Copal Oro, and Copal Negro, of North America. ''Economic Botany'', '''57'''(2) : 189–202. [https://doi.org/10.1663/0013-0001(2003)057%5B0189:CAEOCI%5D2.0.CO;2 doi : 10.1663/0013-0001(2003)057[0189:CAEOCI%5D2.0.CO;2].
*Stross, Brian, 1997. Mesoamerican Copal Resins. ''U-Mut Maya'', '''6''' : 177-186. [[:en:Copal (Stross)|sur Pl@ntUse]] et sur [https://web.archive.org/web/20150212150136/http://www.utexas.edu/courses/stross/papers/copal.htm WaybackMachine].
*Tripplett, K.J., 1999. The ethnobotany of plant resins in the Maya cultural region of southern Mexico and Central America. PhD. dissertation, University of Texas, Austin.
*Whitmore, T.C., 1980. Utilization, potential and conservation of ''Agathis'', a genus of tropical Asian conifers. ''Economic Botany'', '''34'''(1) : 1-12.