Helianti, Is. “INCREASING RECOMBINANT PENICILLIN G ACYLASE PRODUCTION: GENETIC, PROTEIN ENGINEERING, AND PRODUCTIVITY IMPROVEMENT”. Jurnal Bioteknologi & Biosains Indonesia (JBBI), vol. 9, no. 2, Sept. 2023, pp. 295-09, doi:10.55981/jbbi.2022.1775.