Evaluasi Kesesuaian Perhitungan Cadangan Secara Manual Terhadap Penggalian Nyata Bijih Timah Blok Realisasi Pada BWD Kundur 1 PT Timah Tbk Di Laut Penganak Bangka Barat: Evaluation of the Conformity of Manually Reserved Calculations on Real Excavation of Tin Ore of Realized Blocks at BWD Kundur 1 PT Timah Tbk In the Sea of West Bangka Penganak. (2019). MINERAL, 4(1), 44-49. https://doi.org/10.33019/mineral.v4i1.1594