Lee, H. S.; Hoh, K. S.; Hisyam, M. N.; Sapitri, S.; Surol, S. Assessment of Subsurface Soil Properties Using Horizontal-to-Vertical Spectral Ratio (HVSR) and Multichannel Analysis of Surface Waves (MASW) in Cheras, Malaysia. J. Soil Ag. Environ. Agroecol. 2025, 5, 59-72.