T. Borpuzari and R. N. Goswami, Jakir Hussain, R. Roychoudhury, T. K. A A. Aziz, B. N. Saikia. “Factors Affecting the Cost of Production of Milk and Milk Products of Crossbred Cows”. Indian Journal of Animal Production and Management, vol. 34, no. 1-2, Jan. 2019, https://epubs.icar.org.in/index.php/IJAPM/article/view/86340.