Gupta, S. C., P. C. Sawhney, N. D. Kehar, B. Vasudevan, and M. V. N. Rao. “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, vol. 7, no. 2, Mar. 1970, pp. 94-99, https://informaticsjournals.co.in/index.php/ijnd/article/view/11228.