A. F. Al-Easawi N, N. A. Al-Azzawi M, H. Afaj A. Indoor Air Concentrations of Heavy Metals in Two Shisha Smoke Cafés in Baghdad. Iraqi Journal of Science. 2023;56(2B):1359-1365. Accessed January 5, 2026. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/10101