SUBSURFACE STRUCTURES BASED ON MICROTREMOR OBSERVATIONS IN LANDSLIDE AREA OF TANDIKAT, WEST SUMATRA, INDONESIA. INTERNATIONAL JOURNAL OF GEOMATE [Internet]. 2022 Feb. 21 [cited 2026 Jun. 1];22(90):57-62. Available from: https://geomatejournal.com/geomate/article/view/1029