Kabir, M.T. et al. 2020. Physicochemical Properties of Chitosan Extracted from <i>Pleurotus ostreatus</i> and Improvement of its Antibacterial Activity by Gamma Radiation. Bangladesh Journal of Microbiology. 37, 2 (Dec. 2020), 52–55. DOI:https://doi.org/10.3329/bjm.v37i2.51211.