SIHARIS, A. A.; LADIANTO, H. Z. Estimasi Sumberdaya Nikel Laterit dengan Menggunakan Metode Krigging di PT. Gerbang Multi Sejahtera. OPHIOLITE: Jurnal Geologi Terapan, [S. l.], v. 7, n. 1, p. 7–12, 2025. DOI: 10.56099/ophi.v7i1.p7-12. Disponível em: https://ophiolite.uho.ac.id/index.php/journal/article/view/98. Acesso em: 30 oct. 2026.