ALASAD, R. N. I, and A. J. GHAZI. “UMBILICAL HERNIA IN CALVES: INCIDENCE AND TREATMENT ”. The Iraqi Journal of Veterinary Medicine 20, no. 1 (June 28, 1996): 156–167. Accessed November 20, 2025. https://jcovm.uobaghdad.edu.iq/index.php/Iraqijvm/article/view/1587.