Robuta

https://journal.ugm.ac.id/ijc/article/view/21807 EXTRACTION OF COPPER ELECTROLYTICALLY BY USING SOLID MIXTURE OF CuFeS 2 AND CaCO 3 (CHALCOPYCA) AS... EXTRACTION OF COPPER ELECTROLYTICALLY BY USING SOLID MIXTURE OF CuFeS 2 AND CaCO 3 (CHALCOPYCA) AS ANODE