Mustafa, Md Golam, Khabiruddin Ahmed, and Mahmudal Hasan. “Endoscopic Sinus Surgery: Experience of 60 Cases”. Bangladesh Journal of Otorhinolaryngology 17, no. 2 (November 7, 2011): 104–109. Accessed November 26, 2022. https://banglajol.info/index.php/BJO/article/view/8849.