Nasution, Nazaruddin, and Ratni Sirait. “INVESTIGATION OF DOMINANT FREQUENCY AND GROUND AMPLIFICATION BASED ON HVSR MICROTREMOR METHOD IN PANGURURUAN DISTRICT, SAMOSIR”. EINSTEIN (e-Journal), vol. 12, no. 3, Oct. 2024, pp. 84-90, doi:10.24114/ein.v12i3.57360.