AjibolaO. O., AdebayoA. O., BorisadeS. G., AdegbenroA. E., OloruntobaD. T., and OlubambiP. A., “DIRECT BIOLEACHING OF ZINC USING manihot esculenta crantz (cassava) EXTRACT WITHOUT ADDITIVES”, FJS, vol. 4, no. 2, pp. 645 - 657, Jul. 2020.