Buntoro, A. et al. 2022. Vertical Fracability Model on Lithofacies Association of Brownshale Formation from Outcrop Analog Using Rock Mechanical and Mineralogy Correlation Method: A Preliminary Study of Shale Hydrocarbon Development in Bengkalis Trough, Central Sumatra Basin. Indonesian Journal on Geoscience. 9, 1 (Jan. 2022), 87–104. DOI:https://doi.org/10.17014/ijog.9.1.87-104.