Jasim, Sedeeq Mustafa, and Farah Abdul Qadir Faleh. “Modeling and Representing the Multiple Compound Population Pyramid for the Population of Salah Al - Din Governorate, 2016”. Journal of Tikrit University for Humanities 26, no. 4 (June 29, 2019): 233–252. Accessed June 13, 2026. https://jtuh.org/index.php/jtuh/article/view/726.