Erwan, E., et al. “Effects of Varying Levels of L-Leucine and Metabolizable Energy in Finisher Diet on Carcass Composition and Meat Sensory Characteristics of Broiler Chickens”. Pakistan Journal of Nutrition, vol. 8, no. 6, May 2009, pp. 792–796, https://doi.org/10.3923/pjn.2009.792.796.