Verma, A., and P. C. Sawhney. “Haematological Studies in Goats As Influenced by Supplementation of Sulphur on Rations Containing Urea”. The Indian Journal of Nutrition and Dietetics, vol. 7, no. 1, Dec. 2016, pp. 32-35, http://www.informaticsjournals.com/index.php/ijnd/article/view/11172.