Handique, B. et al. 2019. Effect of Dietary Supplementation of Synthetic L-Lysine and DL-Methionine on Growth Performance, Nutrient Utilization and Immunity in Commercial Broiler Chicken. International Journal of Livestock Research. 9, 3 (Mar. 2019), 225–232. DOI:https://doi.org/10.5455/ijlr.20181025040031.