“Enhancement of Keratin Degrading Ability of Bacillus sp. Through Optimization of Submerged Fermentation: Enhancement of Keratin Degrading Ability of Bacillus sp”. (2023) Biological Sciences - PJSIR, 66(1), pp. 20–27. doi:10.52763/PJSIR.BIOL.SCI.66.1.2023.20.27.