P. C. SAXENA, D. P. TIWARI, A. KUMAR, and B. C. MONDAL, “Effect of dietary supplementation of copper and phosphorus on blood mineral statusand biochemical profile in growing crossbred heifers”, Indian J of Anim Sci, vol. 80, no. 1, Jan. 2010, doi: 10.56093/ijans.v80i1.2739.