Sahetapy, George Belly, and Nurany Nurany. “Penentuan Kriteria Kemampugalian Massa Batuan Andesit Menggunakan Metode Geological Strength Index”. Journal Of Science and Engineering, vol. 7, no. 1, Apr. 2024, pp. 28-35, doi:10.33387/josae.v7i1.8073.