Singh, M., M. P. Singh, S. Kaur, and H. K. Verma. “Occlusion of Small Intestine Caused by Trichobezoars (Hair Balls) in Sahiwal Calves-A Case Study”. International Journal of Livestock Research 10, no. 1 (January 31, 2020): 75–77. Accessed April 25, 2026. https://ijlr.org/ojs_journal/index.php/ijlr/article/view/566.