Sawhney, P. C., S. P. Singh Bedi, and K. N. Parameswaram. “Studies on the Digestibility of Proximate Principles and Mineral Utilization in Growing Buffalo Calves <i>(Bos-bubalis)</i> On Rations Containing Urea As a Partial Protein Substitute”. The Indian Journal of Nutrition and Dietetics, vol. 12, no. 12, Dec. 1975, pp. 399-03, https://informaticsjournals.co.in/index.php/ijnd/article/view/11426.