Wilson, G. “AN ANALYSIS OF TWO BIOACTIVE SECONDARY METABOLITES IN HARPAGOPHYTUM PROCUMBENS DC; HARPAGOSIDE AND VERBASCOSIDE IN VITRO AND IN VIVO”. African Journal of Traditional, Complementary and Alternative Medicines 6 (May 2, 2009): 364–365. Accessed February 1, 2025. https://athmsi.org/journals/index.php/ajtcam/article/view/727.