"Epidemiology and Seasonal Dynamics of Internal Parasite Infections in Small Ruminants at Ukulinga Research Farm, South Africa". Journal of Veterinary Medicine and Animal Production 7, no. 1 (أكتوبر 7, 2021). تاريخ الوصول مايو 25, 2026. https://onlinejournals.uofk.edu/vet/article/view/422.