Verma, R. K., Verma, P. C., Gupta, R. P., & Bhargava, D. N. (1990). Effect of Experimental Phosphorus Deficiency on Protein and Feed Efficiency Ratios in Rats. The Indian Journal of Nutrition and Dietetics, 27(6), 190–194. Retrieved from http://www.informaticsjournals.com/index.php/ijnd/article/view/7823