Ayoub, Khushboo, Sunil Malhan, and Shefally Shefally. “Methods of Obturation: Review”. International journal of health sciences 5, no. S1 (July 31, 2021): 249–256. Accessed May 19, 2025. https://sciencescholar.us/journal/index.php/ijhs/article/view/5543.