G. Onibi, O. Folorunso, and C. Elumelu, “Assessment of Partial Equi-Protein Replacement of Soyabean Meal with Cassava and Leucaena Leaf Meals in the Diets of Broiler Chicken Finishers”, Int. J. Poult. Sci., vol. 7, no. 4, pp. 408–413, Feb. 2008, doi: 10.3923/ijps.2008.408.413.