Othman, Samir Mahmood, Abubakir M. Saleh, and Khalis Bilal M.Ali. “Prevalence of Cigarette Smoking Among Hawler Medical University Students”. Zanco Journal of Medical Sciences (Zanco J Med Sci) 13, no. 2 (August 2, 2009): 57–62. Accessed May 8, 2024. https://zjms.hmu.edu.krd/index.php/zjms/article/view/562.