SALSABILLAH, Rizka Dely; RUSMANIAR, Rusmaniar. ANALISIS KADAR NITRIT (NO2-) DAN AMONIA (NH4+) PADA INSTALASI PENGOLAHAN AIR MINUM DENGAN METODE SPEKTROFOTOMETRI UV-Vis. PARADIGM : Journal Of Multidisciplinary Research and Innovation, [S. l.], v. 1, n. 01, p. 1–5, 2023. DOI: 10.62668/paradigm.v1i01.372. Disponível em: https://azramedia-indonesia.azramediaindonesia.com/index.php/paradigm/article/view/372. Acesso em: 2 may. 2026.