A. Sheikhlar, A. B. Kasim, L. T. Chwen, and M. H. Bejo, “Effect of Varying Ratios of Dietary Calcium and Phosphorus on Performance, Phytate P and Mineral Retention in Japanese Quail (Coturnix cotnurnix Japonica)”, Int. J. Poult. Sci., vol. 8, no. 7, pp. 692–695, Jun. 2009, doi: 10.3923/ijps.2009.692.695.