Hermiyanto, M.H. and Ningrum, N.S. 2009. Organic petrology and Rock-Eval characteristics in selected surficial samples of the Tertiary Formation, South Sumatra Basin. Indonesian Journal on Geoscience. 4, 3 (Sep. 2009), 215–227. DOI:https://doi.org/10.17014/ijog.4.3.215-227.