Gupta, S. C., P. C. Sawhney, N. D. Kehar, B. Vasudevan, and M. V. N. Rao. 1970. “Studies on Live-Weight Changes, Physiological Reactions and Blood of Adult Hill Cattle Offered Varying Levels of Protein”. The Indian Journal of Nutrition and Dietetics 7 (2):94-99. http://www.informaticsjournals.com/index.php/ijnd/article/view/11228.