Majeed, M. ., and I. . Ahmed. “Comparison of Gonial Angle Determination from Cephalograms and Orthopantomogram of Patients under Orthodontic Treatment”. Journal of Bahria University Medical and Dental College, vol. 6, no. 2, June 2016, pp. 88-91, https://jbumdc.bahria.edu.pk/index.php/ojs/article/view/171.