RASHMI, S.; SAHADEV, A.; SWAMY, M. Narayana; RAVINDRANATH, B. M.; SANTHOSH, C. R.; KUMAR, S. Naveen; NAGARAJA, B. N. Comparative Evaluation of Early Pregnancy Diagnostic Methods in Dairy Cows. International Journal of Livestock Research, India, v. 10, n. 5, p. 71–77, 2020. DOI: 10.5455/ijlr.20200109120845 . Disponível em: https://ijlr.org/ojs_journal/index.php/ijlr/article/view/636. Acesso em: 28 apr. 2026.