Hadi Susilo, S.; Gumono, G.; Setiawan, A. INVESTIGATION OF HYDROGEN GAS PRODUCTION USING COPPER AND STAINLESS-STEEL ELECTRODES WITH VARIED ELECTRICAL CURRENT AND NaOH CATALYST CONCENTRATION : -. JAES 2023, 21 (4), 1171-1178. https://doi.org/10.5937/jaes0-45549.