Situmeang, A.D. et al. 2026. HVSR-Based Microzonation of Natural Frequency, Amplification, Vulnerability Index, and Ground Shear-Strain in Malang City, East Java. Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram. 14, 1 (Jan. 2026), 258–275. DOI:https://doi.org/10.33394/j-ps.v14i1.17820.