S. Abdelrahim, Jeddah I. E, Egbal, Jeddah, E1, Selma,O.A, Khalda A. Khalifa, Iman M. Elnasri1 , Ballal, and ALHassan A. M1 , Amgad, M. “Incidence of Infectious Bursal Disease in Chickens Submitted to the Veterinary Research Institute (VRI), Khartoum-Sudan”. Journal of Veterinary Medicine and Animal Production 5, no. 2 (October 31, 2022). Accessed April 4, 2025. http://onlinejournals.uofk.edu/index.php/vet/article/view/986.