Adebiyi, O.A., A.D. Ologhobo, and A.S. Agboola. 2009. “Effects of Microbial Phytase Supplementation on Mineral Composition of Tibia and Mineral Utilization in Broiler Fed Maize - Based Diets”. International Journal of Poultry Science 8 (6): 570–573. https://doi.org/10.3923/ijps.2009.570.573.