Tongsang, B. “Evidence of Paleo Sea Level Change in Middle Holocene, Lower Part of Sating-Pra Peninsula Region, Southern Thailand”. YRU Journal of Science and Technology, vol. 6, no. 2, Aug. 2021, pp. 181-9, https://li01.tci-thaijo.org/index.php/yru_jst/article/view/245454.