Evaluasi Produktivitas Crushing Plant Untuk Pencapaian Target produksi 30.000 Ton/Bulan Batu Granit PT Mandiri Karya Makmur Di Desa Tanjung Gunung Kabupaten Bangka Tengah: Evaluation Of Crushing Plant Productivity To Meet Production 30.000 Ton/Month Of PT Mandiri Karya Makmur’s Granit Rock In Tanjung Gunung Village, Central Bangka Regency. mineral [Internet]. 2020 Jan. 29 [cited 2026 May 4];2(1):16-21. Available from: https://journal.ubb.ac.id/index.php/mineral/article/view/1542