Kholifa, Mulik, Tri Mulyono, & Yeni Maulidah Muflihah. " Simultaneous Determination of Magnesium (Mg2+) and Ammonium (NH4+) by Flow Injection Analysis." Jurnal ILMU DASAR [Online], 19.1 (2018): 1-6. Web. 6 May. 2024