Sumardi, S., Agustrina, R., Irawan, B. and Pratiwi, A. (2018) “THE EFFECT OF MAGNETIC FIELD EXPOSURE ON MEDIUM TO PROTEASE PRODUCTION BY Bacillus sp”., BIOVALENTIA: Biological Research Journal, 4(2), pp. 28–32. doi: 10.24233/BIOV.4.2.2018.105.