Perbandingan Perhitungan Sisa Cadangan Batu Granit Menggunakan Metode Cross Section Terhadap Metode Contour Pada PT Aditya Buana Inter Di Kabupaten Bangka: Comparison Of Calculation The Rest Reserve Of Granite Using Cross Section Method On Contour Method At PT Aditya Buana Inter In Bangka Regency. mineral. 2020;3(1):24-30. doi:10.33019/mineral.v3i1.1573