McGaw, L. J., V. P. Bagla, T. A. Mokoka, E. E. Elgorashi, and J. N. Eloff. “SOUTH AFRICAN ETHNOVETERINARY PLANT EXTRACTS WITH ANTIMICROBIAL AND ANTIVIRAL POTENTIAL”. African Journal of Traditional, Complementary and Alternative Medicines, vol. 6, May 2009, p. 472, https://athmsi.org/journals/index.php/ajtcam/article/view/920.