Roy, P. C. ., M. A. . Haque, M. Fatematuzzohora, M. Y. . Ali, and Z. H. . Khandaker. “Effect of Different Level of Energy on Growth Performance of Crossbred Bull Calves”. Asian-Australasian Journal of Bioscience and Biotechnology, vol. 1, no. 2, Aug. 2016, pp. 246-54, doi:10.3329/aajbb.v1i2.61571.