== Références ==
*Langenheim Jean H., 2003. ''Plant resins. Chemistry, evolution, ecology and ethnobotany''. Portland / Cambridge, Timber Press. 586 p.
*NWFP 6. Coppen J.J.W., 1995. ''Gums, resins and latexes of plant origin''. FAO, Rome. 142 p. (''Non-Wood Forest Products'', '''6'''). [http://www.fao.org/docrep/v9236e/v9236e00.htm en ligne]
== Liens ==