Otang, Wilfred Mbeng, Donald Scott Grierson, and Roland Ndip Ndip. 2014. “FOLIAR MICROMORPHOLOGY OF GASTERIA BICOLOR HAW. (ASPHODELACEAE) FROM SOUTH AFRICA”. African Journal of Traditional, Complementary and Alternative Medicines 11 (4):71-76. https://athmsi.org/journals/index.php/ajtcam/article/view/2454.