Ali, M., Farooq, M., Durrani, F., Chand, N., Sarbiland, K., & Riaz, A. (2003). Egg Production Performance and Prediction of Standard Limits for Traits of Economic Importance in Broiler Breeders. International Journal of Poultry Science, 2(4), 275–279. https://doi.org/10.3923/ijps.2003.275.279