DAS, A K, RAVINDER KUMAR, S K RATHEE, B PRAKASH, K ANILKUMAR, P P DUBEY, R L BHAGAT, et al. 2018. “Genetic Improvement of Cattle through Field Progeny Testing Programme: An Evaluation of Achievement”. The Indian Journal of Animal Sciences 87 (12): 1445–1451. https://doi.org/10.56093/ijans.v87i12.79725.