Anyasor, GN, O Ogunwenmo, OA Oyelana, and BE Akpofunure. “Phytochemical Constituents and Antioxidant Activities of Aqueous and Methanol Stem Extracts of <i>Costus Afer Ker Gawl</I>. (Costaceae)”. African Journal of Biotechnology 9, no. 31 (August 8, 2013): 4880–4884. Accessed August 6, 2026. https://www.ajol.info/index.php/ajb/article/view/92037.