SOIL VULNERABILITY ASSESSMENT USING THE HORIZONTAL AND VERTICAL SPECTRUM RATIO (HVSR) METHOD OF AMBIENT NOISE WAVES, EAST JAVA ,INDOSEIA. Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics, [S. l.], v. 5, n. 1, p. 63–71, 2022. DOI: 10.15408/fiziya.v5i2.17226. Disponível em: https://journal.uinjkt.ac.id/al-fiziya/article/view/17226. Acesso em: 12 mar. 2026.