Li, Y., Wang, Y., Pang, Y., Li, J., Xie, X., Guo, T., & Li, W. (2011). The Effect of Crude Protein Level in Diets on Laying Performance, Nutrient Digestibility of Yellow Quails. International Journal of Poultry Science, 10(2), 110–112. https://doi.org/10.3923/ijps.2011.110.112