“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”. MINERAL 3, no. 1 (January 30, 2020): 8–15. Accessed April 15, 2026. https://journal.ubb.ac.id/index.php/mineral/article/view/1569.