Khairani, Mutia, et al. “Density Log Correlation With Coal Proximate in the Muaraenim Formation, Musi Banyuasin, South Sumatera”. Jurnal Bio-Geo Material Dan Energi, vol. 5, no. 2, Sept. 2025, pp. 60-67, doi:10.22437/j-bigme.v5i2.43110.