Wadley, L., and H. Kempson. “A Review of Rock Studies for Archaeologists, and an Analysis of Dolerite and Hornfels from the Sibudu Area, KwaZulu-Natal”. Southern African Humanities 23 (December 31, 2011): 87–107. Accessed November 23, 2024. https://sahumanities.org/index.php/sah/article/view/329.