Islam, M.R., Taous, A., Hossain, M.M., Ekramuddaula, A. and Islam, M.S. 2011. Comparative study of tubotympanic and atticoantral variety of Chronic suppurative otitis media. Bangladesh Journal of Otorhinolaryngology. 16, 2 (Jan. 2011), 113–119. DOI:https://doi.org/10.3329/bjo.v16i2.6846.