B. Na, Dr Vinoth Kumar, Dr. Saravana Kumar R, Dr. Pratebha B, Dr Jananni Muthu, and Dr. Srinivasan K. “Prevalence of Periodontal Disease Among Coal Mine Workers in Tamilnadu: Life Sciences-Health”. International Journal of Life Science and Pharma Research 12, no. SP25 (October 17, 2022): L79-L85. Accessed July 14, 2025. https://www.ijlpr.com/index.php/journal/article/view/1433.