"Risk Factors Associated with antimicrobial Residues in the Milk Consumed in Nyala, South Darfur State, Sudan" (2021) Journal of Veterinary Medicine and Animal Production, 7(1). موجود في: https://onlinejournals.uofk.edu/vet/article/view/424 (تاريخ الوصول: 25 مايو 2026).