“CLUSTERING SLOPE STABILITY USING DEM LINEAMENT EXTRACTION AND ROCK MASS RATING IN PANGKALAN KOTO BARU, WEST SUMATRA, INDONESIA”, INTERNATIONAL JOURNAL OF GEOMATE, vol. 17, no. 60, pp. 225–230, Aug. 2019, Accessed: May 25, 2026. [Online]. Available: https://geomatejournal.com/geomate/article/view/385