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 [Internet]. 2023 Nov. 26 [cited 2026 Jul. 12];21(4):1171-8. Available from: https://asistent.ceon.rs/index.php/jaes/article/view/45549