Amaefule, K., Ojewola, G. and Ironkwe, M. (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), pp. 289–295. doi:10.3923/ijps.2006.289.295.