Coto, Cesar, F. Yan, S. Cerrate, Z. Wang, P. Sacakli, J.T. Halley, C.J. Wiernusz, A. Martinez, and P.W. Waldroup. 2008. “Effects of Dietary Levels of Calcium and Nonphytate Phosphorus in Broiler Starter Diets on Live Performance, Bone Development and Growth Plate Conditions in Male Chicks Fed a Corn-Based Diet”. International Journal of Poultry Science 7 (7): 638–645. https://doi.org/10.3923/ijps.2008.638.645.