“In-Vitro Antioxidant Activities of Different Stem Bark Extracts of Irvingia Gabonensis (Irvingiaceae): doi.org 10.26538 Tjnpr V4i6.2”. Tropical Journal of Natural Product Research , vol. 4, no. 6, June 2020, pp. 223-7, https://www.tjnpr.org/index.php/home/article/view/1106.