Incidence of infectious bursal disease in chickens submitted to the Veterinary Research Institute (VRI), Khartoum-Sudan. vet [انترنت]. 31 أكتوبر، 2022 [وثق 25 مايو، 2026];5(2). موجود في: https://onlinejournals.uofk.edu/vet/article/view/986