FENANDO, Fenando. Sistem Informasi Geografis (SIG) Pemetaan Lokasi Pertambangan Batu Bara Berbasis Quantum GIS (Studi Kasus: PT. Hasil Bumi Kalimantan). Journal of Information Systems and Informatics, [S. l.], v. 3, n. 1, p. 108–120, 2021. DOI: 10.33557/journalisi.v3i1.94. Disponível em: https://www.journal-isi.org/index.php/isi/article/view/94. Acesso em: 7 mar. 2026.