Wooding, Madelien, Justin Bradfield, Vinesh Maharaj, Dwayne Koot, Lyn Wadley, Linda Prinsloo, and Marlize Lombard. 2017. “Potential for Identifying Plant-Based Toxins on San Hunter-Gatherer Arrowheads”. South African Journal of Science 113 (3/4): 10. https://doi.org/10.17159/sajs.2017/20160210.