I. R. M. AL-Shaibani, Tran., “Preliminary Study on Hard Ticks ( Acari: Ixodidae) of Sheep in Some Areas of Thamar Governorate, Yemen”, TU J. Nat. Appl. Sci. , vol. 5, no. 1, pp. 21–31, Jan. 2023, doi: 10.59167/tujnas.v5i5.1304.