Analisa Hasil Pencucian Bijih Timah Pada Harz Jig Dalam Menurunkan Kadar Timah (Sn) Pada Tailing di PT Timah (Persero) Tbk. Unit Kundur, Kepulauan Riau: The Analysis of Tin Ore Leaching Products of Harz Jig In Reducing Tin Tailing Levels In Kundur Unit of Riau Archipelago. PROMINE [Internet]. 2018 Aug. 15 [cited 2026 Apr. 13];4(2). Available from: https://www.journal.ubb.ac.id/index.php/promine/article/view/110