Desai, V. C., R. E. Reddy, M. M, and S. H. Saheb. “Prevalence of Dental Caries in First and Second Permanent Molars”. International Journal of Research in Medical Sciences, vol. 2, no. 2, Jan. 2017, pp. 514-20, https://www.msjonline.org/index.php/ijrms/article/view/2189.