KURNIANTO, Fahmi Arif. Front-matter. Geosfera Indonesia, [S.l.], v. 5, n. 3, p. i-iv, dec. 2020. ISSN 2614-8528. Available at: <https://jurnal.unej.ac.id/index.php/GEOSI/article/view/21713>. Date accessed: 08 nov. 2024. doi: https://doi.org/10.19184/geosi.v5i3.21713.