Mathew, G. ., N. Ramesh, S. Ajay, J. . Lewis, T. Pinto, P. Rohan, J. Singh, and B. Joseph. “Prevalence of Tobacco Dependence and Problem Drinking Among Workers in a Tea Plantation in South India”. National Journal of Community Medicine, vol. 8, no. 08, Aug. 2017, pp. 462-6, https://njcmindia.com/index.php/file/article/view/1214.