B. M. Sobhi, E. Y. Ismael, A. S. . Mansour, M. Elsabagh, and K. N. E.- din . Fahmy, “Effect of Nano-hydroxyapatite as an Alternative to Inorganic Dicalcium Phosphate on Growth Performance, Carcass Traits, and Calcium and Phosphorus Metabolism of Broiler Chickens”, JAVR, vol. 10, no. 4, pp. 250-256, Oct. 2020.