SOFT ROCK CHARACTERIZATION AND ITS IMPACT TO SLOPE STABILITY AT SESAYAP FIELD COAL MINING, TANA TIDUNG, NORTH KALIMANTAN, INDONESIA. AEJ [Internet]. 2026 Aug. 31 [cited 2026 Sep. 20];16(3):645-56. Available from: https://journals.utm.my/aej/article/view/24585