“Analisis Penggunaan Powder Factor Terhadap Fragmentasi Pada Lubang Ledak Vertikal Dan Inclined Di PT Aditya Buana Inter: (Analysis of Powder Factor Using On Fragmentation In Vertical And Inclined Blast Hole at PT Aditya Buana Inter)”. 2019. MINERAL 4 (2): 65-71. https://doi.org/10.33019/mineral.v4i2.1597.