Ahmmed, S.U., Asaduzzaman, A., Ahsan, M.A., Hossain, M.Z., Azad, M.A. and Alam, M.I. 2020. Hoarseness of Voice : An Etiological Study. Bangladesh Journal of Otorhinolaryngology. 23, 1 (Jan. 2020), 47–51. DOI:https://doi.org/10.3329/bjo.v23i1.45112.