Sae-Ju, J., Chotpantarat, S. and Thitimakorn, T. 2021. Geophysical and Hydrogeological Study for Evaluating Seawater Intrusion in Coastal Aquifers of Amphoe Cha-am, Changwat Phetchaburi. Bulletin of Earth Sciences of Thailand. 8, 1 (Nov. 2021), 69–76.