“VACCINATION OF CALVES WITH LIVE MODIFIED AND LIVE VIRULENT STRAIN OF SALMONELLA TYPHIMURIUM”. The Iraqi Journal of Veterinary Medicine 20, no. 2 (November 21, 2022): 112–131. Accessed March 11, 2025. https://jcovm.uobaghdad.edu.iq/index.php/Iraqijvm/article/view/1365.