Mahmood, Hafiz Taha, Attiya Shaikh, and Mubassar Fida. 2018. “RELIABILITY AND VALIDITY OF MAXILLARY AND SPHENOID SINUS MORPHOLOGICAL VARIATIONS IN THE ASSESSMENT OF SKELETAL MATURITY”. Journal of Ayub Medical College Abbottabad 30 (3):360-65. https://jamc.ayubmed.edu.pk/index.php/jamc/article/view/3573.