Kampala , A.; Thirakultomorn , T.; Arngbunta, A.; Kaewhanam , N.; Amornpinyo, P.; Sirisriphet , Y.; Bubpi, A. Development and Calibration of Empirical and Statistical Models for SPT-N Prediction in Fine Grained Soils. Civ Eng J 2026, 12, 1170-1189.