PENYELIDIKAN PENDAHULUAN MANIFESTASI PANASBUMI NGEBEL PONOROGO, JAWA TIMUR. PROMINE, [S. l.], v. 2, n. 1, 2018. DOI: 10.33019/promine.v2i1.73. Disponível em: https://journal.ubb.ac.id/index.php/promine/article/view/73. Acesso em: 4 may. 2026.