Identifikasi Peningkatan Strength Factor Dengan Metode Q-System Pada Terowongan Tambang Bawah Tanah Daerah Perambahan, Kota Sawahlunto, Sumatera Barat: Identification of Strength Factor Improvement Using the Q-System Method in Underground Mining Tunnels in Perambahan Area, Sawahlunto City, West Sumatra. MINERAL, [S. l.], v. 7, n. 2, p. 29–36, 2022. DOI: 10.33019/mineral.v7i2.3418. Disponível em: https://www.journal.ubb.ac.id/index.php/mineral/article/view/3418. Acesso em: 20 apr. 2026.