Amaefule, K.U., S.F. Abasiekong, S.N. Ibe, and O.C. Onwudike. 2009. “Digestibility and Nutrient Utilization of Some Agro-Industrial By-Products Fed to Growing Pigs in the Humid Tropics”. Pakistan Journal of Nutrition 8 (4): 355–360. https://doi.org/10.3923/pjn.2009.355.360.