SIPRIYADI, S. et al. 2020. Optimization of Xylanase Production by Streptomyces costaricanus 45I-3 Using Various Substrates through Submerged Fermentation. Microbiology Indonesia. 14, 1 (Sep. 2020), 5. DOI:https://doi.org/10.5454/mi.14.1.5.