Shikha, D. D., J. Semwal, A. Srivastava, M. Singh, and S. Kandpal. “A Study On Rural & Urban Differences In Tobacco Use And Its Socio-Demographic Determinants In District Dehradun: Rural & Urban Differences In Tobacco Use”. National Journal of Integrated Research in Medicine, vol. 5, no. 1, Feb. 2014, pp. 73-78, http://nicpd.ac.in/ojs-/index.php/njirm/article/view/2283.