Bali, Vikram, Rajnesh Parimoo, and Santokh Singh. “Classification of Furcation Involvement: A Literature Review”. International journal of health sciences 5, no. S1 (July 31, 2021): 428–440. Accessed April 30, 2026. http://www.sciencescholar.us/journal/index.php/ijhs/article/view/5678.