Kumar, Shalander, Khem Chand, and S B Agarwal. “Herd Size - Productivity Relationship and Returns of Sale in Milk Production”. The Indian Journal of Animal Sciences 68, no. 3 (June 14, 2012). Accessed October 24, 2025. https://epubs.icar.org.in/index.php/IJAnS/article/view/19965.