D. Saeed, Vean. “Bacteriological Study in Some Clinics of doctors’ Assistants in Erbil City”. Journal of Education and Science 22, no. 1 (March 1, 2009): 32–50. Accessed December 16, 2025. https://edusj.uomosul.edu.iq/index.php/edusj/article/view/42101.