Amaefule, K.U., G.S. Ojewola, and M.C. Ironkwe. 2006. “Pigeon Pea (Cajanus Cajan) Seed Meal As Protein Source for Pullets: 2. Response of Pullets to Higher Inclusion Level and Prolonged Feeding of Raw or Processed Pigeon Pea Seed Meal Diets”. International Journal of Poultry Science 5 (3): 289–295. https://doi.org/10.3923/ijps.2006.289.295.