Melanie, K., N. Bilong, and P. Moundipa. “COVARIUM 10 A NEW MEDICINE AGAINST INTESTINAL AMOEBIASIS FROM CODIAEUM VARIEAGATUM (EUPHORBIACEAE)”. African Journal of Traditional, Complementary and Alternative Medicines, vol. 6, May 2009, pp. 448-9, https://journals.athmsi.org/index.php/ajtcam/article/view/880.