Optimalisasi dan Produktivitas Alat Gali-Muat dan Alat Angkut pada Tambang Batu Granit PT Vitrama Properti di Desa Air Mesu, Kecamatan Pangkalan Baru, Kabupaten Bangka Tengah: Optimization and Productivity of Excavator and Dump Truck in Granite Mining Activity of PT Vitrama Properti at Air Mesu Village, Pangkalan Baru Subdistrict, Central Bangka Regency. MINERAL, [S. l.], v. 2, n. 1, p. 8–15, 2020. DOI: 10.33019/mineral.v2i1.1541. Disponível em: https://journal.ubb.ac.id/index.php/mineral/article/view/1541. Acesso em: 18 apr. 2026.