HARTONO, Gendoet; SUDRAJAT, Adjat; SYAFRI, Ildrem. Gumuk gunung api purba bawah laut di Tawangsari - Jomboran, Sukoharjo - Wonogiri, Jawa Tengah. Indonesian Journal on Geoscience, [S. l.], v. 3, n. 1, p. 37–48, 2008. DOI: 10.17014/ijog.3.1.37-48. Disponível em: https://ijog.geologi.esdm.go.id/index.php/IJOG/article/view/46. Acesso em: 15 mar. 2025.