Panwar, . S. K., S. M. Ansari, and S. K. Mulla. “Oral Precancerous Lesions in Tobacco Users Attending Dental Outdoor in Jhalawar District of Rajasthan”. National Journal of Community Medicine, vol. 3, no. 03, Sept. 2012, pp. 502-5, https://njcmindia.com/index.php/file/article/view/1752.