Mncwangi, N., A. Viljoen, and M. Manley. 2009. “CHEMICAL PROFILING OF SUTHERLANDIA FRUTESCENS AND S. MICROPHYLLA”. African Journal of Traditional, Complementary and Alternative Medicines 6 (May):417-18. https://journals.athmsi.org/index.php/ajtcam/article/view/818.