“Optimalisasi Unit Peremukan Dalam Pencapaian Target Produksi 60.000 Ton Bulan Batu Granit Pada Pt Vitrama Properti Di Desa Air Mesu Kabupaten Bangka Tengah: Optimalization of Crushing Plant in Achieving The Production Target of 60.000 Tons Month Granite in PT Vitrama Properti at Air Mesu Village Central Bangka Regency”. 2020. MINERAL 3 (1): 8-15. https://doi.org/10.33019/mineral.v3i1.1569.