Mahmud, Khaled, MN Faruque, and KA Faisal. 2013. “A Study on Type-1 Tympanoplasty in Perforated Ear Drum”. Journal of Dhaka National Medical College &Amp; Hospital 18 (2):14-16. https://doi.org/10.3329/jdnmch.v18i2.16015.