WIDADA, H., ROHMAN, A., JENIE, R. I. and SISMINDARI (2019) “APPLICATION OF GRAPHENE OXIDE ON APTAMER-BASED BIOSENSOR DEVELOPMENT FOR AUTHENTICATION OF GELATIN”, International Journal of Applied Pharmaceutics, 11(2), pp. 254–258. doi: 10.22159/ijap.2019v11i2.31122.