Kefi, A.S., J. Kang'ombe, D. Kassam, and C. Katongo. “Effect of Dietary Soyabean [Glycine Max (L.) Merr.] Protein Level on Growth and Feed Utilization of Oreochromis Andersonii (Castelnau, 1861)”. Pakistan Journal of Nutrition 12, no. 11 (October 15, 2013): 990–995. Accessed August 23, 2025. https://pjnonline.org/pjn/article/view/1932.