K. . Ansari, F. A. . Farooqi, S. T. . Abidi, J. S. . Al Mubarak, and S. Ali, “Prevalence, Comparison, and Determinants of Smoking among Young Schoolchildren in Kingdom of Saudi Arabia”, Open Access Maced J Med Sci, vol. 8, no. E, pp. 347–352, Jun. 2020.