“PENINGKATAN KUALITAS AIR PASCA TAMBANG TIMAH DENGAN TEKNIK ELEKTROKOAGULASI”. PROCEEDINGS OF NATIONAL COLLOQUIUM RESEARCH AND COMMUNITY SERVICE 3 (September 17, 2019): 5–8. Accessed September 8, 2026. https://journal.ubb.ac.id/index.php/snppm/article/view/1299.