SINGH, M.; SINGH, M. P.; KAUR, S.; VERMA, H. K. Occlusion of Small Intestine caused by Trichobezoars (Hair Balls) in Sahiwal Calves-A Case Study. International Journal of Livestock Research, India, v. 10, n. 1, p. 75–77, 2020. DOI: 10.5455/ijlr.20190911072305. Disponível em: https://ijlr.org/ojs_journal/index.php/ijlr/article/view/566. Acesso em: 25 apr. 2026.