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<strong>Geosfera Indonesia</strong>, [S.l.], v. 1, n. 1, p. 1-7, dec. 2017.
ISSN 2614-8528.
Available at: &lt;<a href="https://jurnal.unej.ac.id/index.php/GEOSI/article/view/6189" target="_new">https://jurnal.unej.ac.id/index.php/GEOSI/article/view/6189</a>&gt;. Date accessed: 05 may 2024.
doi: <a href="https://doi.org/10.19184/geosi.v1i1.6189">https://doi.org/10.19184/geosi.v1i1.6189</a>.