Paul, Debasish, Alamgir Rahman, Mohammad Ilias, and M Mozammel Hoq. 2008. “Production and Characterization of Keratinolytic Protease of <i>Bacillus licheniformis</I> MZK-03 Grown on Feather Mill”. Bangladesh Journal of Microbiology 24 (1):57-61. https://doi.org/10.3329/bjm.v24i1.1239.