Martosuwito, Surono, Syaiful Bachri, and Zakiyah Ainul Kamal. “Stratigraphical and Sedimentological Review of the Merawu Formation, Serayu Basin, Central Jawa, Indonesia”. Indonesian Journal on Geoscience 5, no. 2 (July 6, 2018): 117–128. Accessed June 6, 2025. https://ijog.geologi.esdm.go.id/index.php/IJOG/article/view/393.