Crude Enzyme of Aspergillus sp. 3 Immobilized in Chitosan-Beads to Decolorize Batik EffluentRatna Stia Dewi, Putri Ramadani, Jimmy Al Fa’is and Wafa Nur AzizahBIO Web Conf., 41 (2021) 06002DOI: https://doi.org/10.1051/bioconf/20214106002