Amrith Kumar, M.N., Bhaskar, B.V., Nagarcenkar, R. and Sampath, S.R. 1973. Study on the Effect of Supplementation of Copper, Cobalt and LIV-52 LN the Ration of Heifers. The Indian Journal of Nutrition and Dietetics. 10, 3 (May 1973), 139–147.