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Tarigan A, Franto, Guskarnali. KAJIAN KADAR SERTA PENENTUAN KELAYAKAN EKONOMI CASSITERITE PADA SISA HASIL PENGOLAHAN WASHING PLANT DI DESA TANJUNG GUNUNG: RATE STUDY AND DETERMINATION OF ECONOMIC ELIGIBILITY CASSITERITE ON THE REST OF THE PROCESSED PRODUCT WASHING PLANT IN TANJUNG GUNUNG VILLAGE. JTP [Internet]. 2025 Feb. 28 [cited 2025 Mar. 9];25(1):39-45. Available from: https://e-journal.upr.ac.id/index.php/JTP/article/view/15152