Singh, Devesh, C. B. Singh, D. Kumar, Shive Kumar, B. N. Shahi, and B. S. Khadda. 2020. “Effect of Genetic and Non-Genetic Factors on Production Performance of Sahiwal Cattle”. International Journal of Livestock Research 10 (2). India:61-66. https://doi.org/10.5455/ijlr.20190727104522.