M, APARNA., NIVETHIGAA B, and RAKSHAGAN V. “Nasolabial Angle in Patients With Maxillary Incisor Proclination- A Retrospective Study”. The journal of contemporary issues in business and government 27, no. 2 (April 30, 2021): 427–433. Accessed December 21, 2024. https://cibgp.com/au/index.php/1323-6903/article/view/945.