Al-Daraji , H. J., Al-Mashadani, H., Mirza, H., Al-Hayani, W., & Al-Hassani, A. (2011). Influence of Source of Oil Added to Diet on Egg Quality Traits of Laying Quail. International Journal of Poultry Science, 10(2), 130–136. https://doi.org/10.3923/ijps.2011.130.136