Pervaiz, Mehak, and Rabia Baloch. “Measuring Carbon Monoxide Levels of Hookah Cafés in Karachi, Pakistan”. Annals of Jinnah Sindh Medical University 6, no. 1 (July 11, 2020): 20-23. Accessed April 19, 2024. http://ajsmu.com/index.php/AJSMU/article/view/74.