Celebi, Saban, S. Canan Bolukbasi, and Necati Utlu. 2005. “The Influence of Dietary Phosphorus Level on Plasma Calcium and Phosphorus, Eggshell Calcium and Phosphorus”. International Journal of Poultry Science 4 (7): 497–499. https://doi.org/10.3923/ijps.2005.497.499.