Wiyatmo, Y. and Sudomo, J. (2018) “Tsunami Disaster Awareness for Elementary School Communities in the South Beach Area of Kulon Progo District”, YRU Journal of Science and Technology. Yala, Thailand, 1(1), pp. 1–12. available at: https://li01.tci-thaijo.org/index.php/yru_jst/article/view/124412 (accessed: 1 September 2026).