Litu, Mani Lal Aich, Abdullah Al Mamun, Zahedul Alam, Rojibul Haque, Abu Hanif, and Amjad Hossain. “Exostoses of the External Auditory Canal”. Bangladesh Journal of Otorhinolaryngology 18, no. 1 (April 21, 2012): 91–95. Accessed November 30, 2021. https://banglajol.info/index.php/BJO/article/view/10428.