“SUBSURFACE STRUCTURES BASED ON MICROTREMOR OBSERVATIONS IN LANDSLIDE AREA OF TANDIKAT, WEST SUMATRA, INDONESIA”, INTERNATIONAL JOURNAL OF GEOMATE, vol. 22, no. 90, pp. 57–62, Feb. 2022, Accessed: Apr. 17, 2026. [Online]. Available: https://geomatejournal.com/geomate/article/view/1029