Preliminary Study on Hard Ticks ( Acari: Ixodidae) of Sheep in Some Areas of Thamar Governorate, Yemen (I. R. M. AL-Shaibani, Trans.). (2023). Thamar University Journal of Natural & Applied Sciences, 5(1), 21-31. https://doi.org/10.59167/tujnas.v5i5.1304