Okigbo, RN, and UO Ogbonnaya. “Antifungal Effects of Two Tropical Plant Leaf Extracts (Ocimum Gratissimum and Aframomum Melegueta) on Postharvest Yam (Dioscorea spp.) Rot”. African Journal of Biotechnology 5, no. 9 (May 19, 2009). Accessed September 30, 2026. https://www.ajol.info/index.php/ajb/article/view/42786.