ANALYSIS OF ACTIVE CARBON OF RICE HUSK AND BANANA KEPOK SKIN AS ADSORBENT MEDIA IN REDUCING HEAVY METALS IRON (Fe), TSS AND pH ATKUNDUR RIVER IN SOUTH SUMATRA. TURCOMAT [Internet]. 2021 Sep. 13 [cited 2026 May 28];12(14):3532-9. Available from: https://www.turcomat.org/index.php/turkbilmat/article/view/10954