SERO-PREVALENCE AND RISK FACTORS OF PESTE DES PETITS RUMINANT (PPR) IN SHEEP IN RIVER NILE AND WHITE NILE STATES, SUDAN . vet [انترنت]. 7 نوفمبر، 2022 [وثق 25 مايو، 2026];3(2). موجود في: https://onlinejournals.uofk.edu/vet/article/view/1085