van Zyl, R. L., and A. M. Viljoen. “THE ANTIPLASMODIAL ACTIVITY AND TOXICITY PROFILE OF TEN SOUTH AFRICAN COMMIPHORA SPECIES”. African Journal of Traditional, Complementary and Alternative Medicines, vol. 6, Apr. 2009, p. 327, https://journals.athmsi.org/index.php/ajtcam/article/view/656.