Ziyad Jamil Al-Talabani , Shaho. 2021. “The Application of Tetragon Analysis in A Sample of Kurdish Adult Population With Class I Occlusion:A Cephalometric Study”. Diyala Journal of Medicine 20 (1):22-33. https://www.djm.uodiyala.edu.iq/index.php/djm/article/view/709.