Nudin, Azan. “UJI EFEKTIVITAS ARANG BATOK KELAPA DAN ARANG KULIT KENARI UNTUK MENURUNKAN KADAR BESI (Fe) AIR SUMUR GALI”. Buletin Keslingmas 40, no. 3 (September 30, 2021): 100–105. Accessed October 23, 2026. https://ejournal.poltekkes-smg.ac.id/ojs/index.php/keslingmas/article/view/7650.