T, Santhosh, Kaarthikeyan G, and Sankari malaiappan. “PREVALENCE OF GINGIVAL HYPERPIGMENTATION AMONG OLDER INDIVIDUALS MORE THAN 40 YEARS OF AGE ”. International Journal of Psychosocial Rehabilitation 23, no. 6 (December 3, 2019): 978–992. Accessed October 17, 2025. https://www.psychosocial.com/index.php/ijpr/article/view/6683.