Al- Kasar, Nothiala R., and Mahdi M. Thuwaini. “Pathological Changes in Two Species of Aquatic Birds Result from Infection With Some Respiratory Trematodes in Al-Hamar Marsh Thi-Qar Province”. University of Thi-Qar Journal, vol. 12, no. 3, Apr. 2019, p. 250_267, doi:10.32792/utj.v12i3.113.