KHUNTE, N, et al. “COMPARATIVE EVALUATION OF REPRODUCTIVE PERFORMANCE OF GRADED AND CROSSBRED CATTLE OF CHHATTISGARH IN FIELD CONDITION ”. The Indian Journal of Animal Reproduction, vol. 38, no. 2, Jan. 2017, pp. 40-42, https://acspublisher.com/journals/index.php/ijar/article/view/3822.