SERO-PREVALENCE AND RISK FACTORS OF PESTE DES PETITS RUMINANT (PPR) IN SHEEP IN RIVER NILE AND WHITE NILE STATES, SUDAN . Journal of Veterinary Medicine and Animal Production, [S. l.], v. 3, n. 2, 2022. Disponível em: https://onlinejournals.uofk.edu/vet/article/view/1085. Acesso em: 25 مايو. 2026.