TJIA, H. D. Morphostructural Development of Gunungsewu Karst, Jawa Island. Indonesian Journal on Geoscience, [S. l.], v. 8, n. 2, p. 75–88, 2013. DOI: 10.17014/ijog.8.2.75-88. Disponível em: https://ijog.geologi.esdm.go.id/index.php/IJOG/article/view/157. Acesso em: 6 feb. 2025.