Qureshi, A., N. Dawani, and A. A. Shaikh. “Areca Nut Consumption Patterns Among Primary School Children of Karachi”. Journal of the Dow University of Health Sciences (JDUHS), vol. 7, no. 1, Apr. 2013, pp. 25-29, https://mail.jduhs.com/index.php/jduhs/article/view/1560.