SUPARTONO, S.; RATNANINGSIH, E.; ACHMAD, S.; LIANG, O. B. Characterization of Extracellular Penicilin G Acylase Produced by A New Local Strain of Bacillus Subtilis BAC4. HAYATI J Biosci 2009, 15 (2), 71. https://doi.org/10.4308/hjb.15.2.71.