“Indoor Air Concentrations of Heavy Metals in Two Shisha Smoke Cafés in Baghdad”, Iraqi Journal of Science, vol. 56, no. 2B, pp. 1359–1365, Apr. 2023, Accessed: May 17, 2024. [Online]. Available: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/10101