Gebreyohannes, G. ., S. . Koonawootrittriron, M. A. . Elzo, and T. . Suwanasopee. “Estimation of Genetic Parameters Using a Random Regression Monthly Test-Day Model in an Ethiopian Dairy Cattle Population”. Agriculture and Natural Resources, vol. 50, no. 1, Feb. 2016, pp. 64-70, https://li01.tci-thaijo.org/index.php/anres/article/view/243885.