Althaf, Muhammad Mahdy, Syafriani Syafriani, and Harman Amir Zulhendra. 2025. “Subsurface Lithology Analysis Using HVSR Method in Jorong Ranah, X Koto Singkarak District”. Jurnal Pendidikan, Sains, Geologi, Dan Geofisika (GeoScienceEd Journal) 6 (2):992-1001. https://doi.org/10.29303/goescienceed.v6i2.818.