PUTRI, F.P. et al. 2015. Medium Optimization for Penicillin Acylase (PAc) Production by Recombinant B. megaterium MS941 Containing pac Gene from B. thuringiensis BGSC BD1 Using Response Surface Methodology. Microbiology Indonesia. 9, 2 (Jun. 2015), 3. DOI:https://doi.org/10.5454/mi.9.2.3.