PUTRI, F. P. (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), p. 3. doi: 10.5454/mi.9.2.3.