Kurniati, Nurtika, Nisa Rachmania Mubarik, and Desniar. 2015. “OPTIMIZATION OF PRODUCTION OF PROTEASE BY LACTOBACILLUS PLANTARUM SK (5) FROM BEKASAM WITH RESPONSE SURFACE METHODOLOGY”. Pakistan Journal of Biotechnology 12 (2):123-30. https://pjbt.org/index.php/pjbt/article/view/155.