Sari, Mustafa, Ahmet G. Onol, Mehmet Daskiran, and Ozcan Cengiz. “Egg Production and Calcium-Phosphorus Utilization of Laying Hens Fed Diets Supplemented With Phytase Alone or in Combination With Organic Acid”. International Journal of Poultry Science 11, no. 3 (February 15, 2012): 181–189. Accessed September 22, 2025. https://ijpsjournal.org/index.php/ijps/article/view/1775.