Parveen, KAISER, A.K Gupta, R.S. Gandhi, A.K Chakravarty, and Shabahat Mumtaz. 2018. “Genetic Analysis of Trends in Production Traits of Sahiwal Cows over Years Using BLUP Animal Model”. Indian Journal of Dairy Science 71 (4). https://epubs.icar.org.in/index.php/IJDS/article/view/70803.