Erna Fitriany, Fredy Kurniawan and Muji Harsini (2025) “Preliminary Study of Modified Iron Electrodes for Ammonia Nitrogen Detection Using Voltammetry Method”, Proceeding of International Joint Conference on UNESA, 3(1). Available at: https://proceeding.unesa.ac.id/index.php/pijcu/article/view/7144 (Accessed: 22 November 2025).