Gunawardana, P. et al. 2009. Effect of Dietary Protein and Peptide in Corn-Soy Diets on Hen Performance,Egg Solids, Egg Composition and Egg Quality of Hy-Line W- 36 Hens During Second Cycle Phase Three. International Journal of Poultry Science. 8, 4 (Mar. 2009), 317–322. DOI:https://doi.org/10.3923/ijps.2009.317.322.