ZETRA, Yulfi; KUSUMA, Hendra Siswanto; RIANDRA, Fina; SOSROWIDJOJO, Imam B.; BURHAN, R.Y. Perry. The Oxygenated Biomarker as an Indicator of Origin and Maturity of Miocene Brown Coal, Sangatta Coal Mines, East Kalimantan. Indonesian Journal on Geoscience, [S. l.], v. 5, n. 2, p. 107–116, 2018. DOI: 10.17014/ijog.5.2.107-116. Disponível em: https://ijog.geologi.esdm.go.id/index.php/IJOG/article/view/289. Acesso em: 8 sep. 2024.