Manakkong W, Jaichalad N. A Study of Operational Guidelines for Risk Reduction of Schools under the Secondary Educational Service Area Office 39. Humanities and Social Sciences Journal of Pibulsongkram Rajabhat University [internet]. 2017 Feb. 6 [cited 2026 Jan. 7];12(2):320-33. available from: https://so01.tci-thaijo.org/index.php/GraduatePSRU/article/view/63562