Bruce, Stella O., et al. “Chemical Composition, Hepatoprotective and Antioxidant Activity of the Crude Extract and Fractions of the Leaves of Fadogia Cienkowskii Schweinf (Rubiaceae): doi.org 10.26538 Tjnpr V5i4.21”. Tropical Journal of Natural Product Research (TJNPR), vol. 5, no. 4, Mar. 2021, pp. 720-31, https://tjnpr.org/index.php/home/article/view/686.