Abdel-Maksoud, A. et al. 2009. Effect of Dietary Crude Protein, Lysine Level and Amino Acid Balance on Performance of Broilers 0 to 18 Days of Age. International Journal of Poultry Science. 9, 1 (Dec. 2009), 21–27. DOI:https://doi.org/10.3923/ijps.2010.21.27.