Zahara P., L.O., Permatasari, C.S., Supriyadi, I. and Andreyani, A. 2021. The Coal Bio-Solubilization Technology for Energy Security. Indonesian Journal of Energy. 4, 1 (Feb. 2021), 1-12. DOI:https://doi.org/10.33116/ije.v4i1.101.