yousuf, saleem, et al. “Comparison of Genetic Parameters of First Lactation 305 Day Milk Yield Using Single Versus Multi-Trait Animal Models in Murrah Buffaloes”. Indian Journal of Dairy Science, vol. 70, no. 6, Dec. 2017, https://epubs.icar.org.in/index.php/IJDS/article/view/60805.