LAKSHMI, K.; PADMAJA, K.; NAGARAJ, P.; REDDY, A. Gopala; PRAKASH, M. Gnana. Ultrasonographic Diagnosis of Biliary Tract Disorders in Dogs. International Journal of Livestock Research, India, v. 8, n. 10, p. 281–286, 2018. Disponível em: http://ijlr.org/ojs_journal/index.php/ijlr/article/view/1567. Acesso em: 25 may. 2026.