Jitesh S, Arvina Rajasekar, and Madhulaxmi M. “Prevalence of Type of Maxillary Labial Frenal Attachment Among 18-30 Years: A Retrospective Study”. International Journal of Research in Pharmaceutical Sciences, vol. 11, no. (SPL 3), Dec. 2020, pp. 1932-6, https://ijrps.com/home/article/view/3495.