NGIBAD, Khoirul. Penentuan Konsentrasi Ammonium dalam Air Sungai Pelayaran Ngelom: Determination of Ammonium Concentration in Ngelom . Shipping River Water. Medicra (Journal of Medical Laboratory Science/Technology), [S. l.], v. 2, n. 1, p. 37–42, 2019. DOI: 10.21070/medicra.v2i1.2071. Disponível em: https://medicra.umsida.ac.id/index.php/medicra/article/view/1601. Acesso em: 13 aug. 2025.