Hikmah, Fajrin, Tri Mulyono, & Zulfikar Zulfikar.
" Simultaneous Analysis of Ammonium and Nitrate Ions Levels with Potentiometric Multi-commutation Flow System Method." <em>Jurnal ILMU DASAR</em> [Online], 22.1 (2021): 69-74. Web. 22 Nov. 2024