IQBAL, M.; SUWARNA, Nana; SYAFRI, Ildrem; WINANTRIS, Winantris. Eo-Oligocene Oil Shales of the Talawi, Lubuktaruk, and Kiliranjao Areas, West Sumatra: Are they potential source rocks?. Indonesian Journal on Geoscience, [S. l.], v. 1, n. 3, p. 135–149, 2014. DOI: 10.17014/ijog.1.3.135-149. Disponível em: https://ijog.geologi.esdm.go.id/index.php/IJOG/article/view/198. Acesso em: 6 feb. 2025.