Ahmed, Mohamed Elamin, and Khadiga Abbas Abdelati. “Effect of Dietary Graded Levels of Leucaena Leucocephala Seeds on Layers Performance, Egg Quality and Blood Parameters”. International Journal of Poultry Science, vol. 8, no. 5, Apr. 2009, pp. 475–479, https://doi.org/10.3923/ijps.2009.475.479.