HAILE, A., JOSHI, B. K., AYALEQ, W., TEGEGNE, A., SINGH, A., & CHAKRAVARTY, A. K. (2011). Prediction of first lactation milk geld of Boran cattle and their crosses with Holstein-Friesian in Central Ethiopia using multiple regression and principal components analysis. The Indian Journal of Animal Sciences, 78(1). https://epubs.icar.org.in/index.php/IJAnS/article/view/3335