Nata, Refky, and Alexander Alexander. 2019. “Analysis Stability Of Slope in Pit B Miyor Pratama Coal Accompany, Kumanis Atas Village, Talawi Regency, Sawahlunto, West Sumatera”. PROMINE 7 (1), 15-19. https://doi.org/10.33019/promine.v7i1.1056.