V. J, O., H. . MURALIDOSS, and D. . GURUNATHAN. “Incidence of Transalveolar Extraction in Upper First Molar Among Patients Visiting A Dental Hospital”. The Journal of Contemporary Issues in Business and Government, vol. 27, no. 2, Apr. 2021, pp. 344-51, https://cibgp.com/au/index.php/1323-6903/article/view/935.