“Review Kemajuan Tambang Bulan November 2019 Dan Perencanaan Tambang Bulan Desember 2019 Di Tambang Terbuka Batubara”. Jurnal Geomine, vol. 8, no. 03, Dec. 2020, pp. 181-92, https://doi.org/10.33536/jg.v8i03.1405.