ALhag Baker, Jawdat Mamand, and Nazar Ali shreen Al-Doski. “Health Risk Behaviors Among Male Students in Secondary Schools in Erbil City”. Zanco Journal of Medical Sciences (Zanco J Med Sci) 20, no. 1 (April 3, 2016): 1199_1205. Accessed June 25, 2022. https://zjms.hmu.edu.krd/index.php/zjms/article/view/191.