Razzak, M. A., M. K. Alam, M. W. Rahman, S. S. Islam, M. R. Hossain, and Z. A. Amin. “Functional Endoscopic Sinus Surgery (FESS) for the Management of Chronic Rhinosinusitis”. Bangladesh Journal of Otorhinolaryngology, vol. 23, no. 2, Jan. 2020, pp. 122-6, doi:10.3329/bjo.v23i2.45139.