KC, S, RPS Guragain, and BK Sinha. 2007. “Accuracy of Otoscopy, Tympanic Membrance Mobility and Tympanometry in the Diagnosis of Otitis Media With Effusion”. Journal of Institute of Medicine Nepal 29 (1):17-20. https://www.nepjol.info/index.php/JIOM/article/view/640.