Abdullallah Hussain, Wissam. “A Geographical Analysis of Health Services in Duhok District Center for the Year 2018”. College of Basic Education Research Journal 17, no. 1 (March 1, 2021): 591–616. Accessed October 26, 2025. https://moss.uomosul.edu.iq/index.php/berj/article/view/39018.