JAFFRI, S. B.; YOUSUF, A.; QIDWAI, W. WATER PIPE SMOKING AMONGST THE UNIVERSITY AND COLLEGE STUDENTS OF KARACHI, PAKISTAN. Pakistan Journal of Chest Medicine, [S. l.], v. 18, n. 2, 2015. Disponível em: http://www.pjcm.net/index.php/pjcm/article/view/94. Acesso em: 6 jun. 2026.