Erna Fitriany, Fredy Kurniawan, and Muji Harsini. “Preliminary Study of Modified Iron Electrodes for Ammonia Nitrogen Detection Using Voltammetry Method”. Proceeding of International Joint Conference on UNESA 3, no. 1 (November 19, 2025). Accessed November 22, 2025. https://proceeding.unesa.ac.id/index.php/pijcu/article/view/7144.