A. Akinmutimi and G. Onen, “The Response of Broiler Finisher Birds Fed Graded Levels of Yam Peel Meal in Place of Maize-Based Diets”, Int. J. Poult. Sci., vol. 7, no. 5, pp. 474–479, Apr. 2008, doi: 10.3923/ijps.2008.474.479.