Badri Abboud, Hayder. “THE PREVALENCE AND RELATION OF OVINE PROGRESSIVE PNEUMONIA TO PASTEURELLA HAEMOLYTICA IN TWO FLOCKS OF SHEEP ”. The Iraqi Journal of Veterinary Medicine 12, no. 1 (December 28, 1988): 70–85. Accessed January 5, 2026. https://jcovm.uobaghdad.edu.iq/index.php/Iraqijvm/article/view/1686.