Rochyani, Neny, Eddy Ibrahim, M. Faizal, and Ngudiantoro Ngudiantoro. 2014. “Study on Environment Characteristics for Mining Management at East Pit 3 West Banko Coal Mine”. International Journal on Advanced Science, Engineering and Information Technology 4 (3):169-72. https://doi.org/10.18517/ijaseit.4.3.393.