ESTIMATION OF VS30 BASED ON SOIL INVESTIGATION BY USING MICROTREMOR OBSERVATION IN PADANG, INDONESIA. International Journal of Geomate, [S. l.], v. 13, n. 38, p. 135–140, 2017. Disponível em: https://geomatejournal.com/geomate/article/view/1461. Acesso em: 9 oct. 2026.