Amrith Kumar, M. N., B. V. Bhaskar, R. Nagarcenkar, and S. R. Sampath. “Study on the Effect of Supplementation of Copper, Cobalt and LIV-52 LN the Ration of Heifers”. The Indian Journal of Nutrition and Dietetics, vol. 10, no. 3, May 1973, pp. 139-47, https://www.informaticsjournals.com/index.php/ijnd/article/view/10735.