Bancha Wongsue, Sittiporn Kao-un, Sirimas Muensai. Management of School Safety and Health of Secondary Schools in the Lower Northern Region. SJIS [Internet]. 2023 Mar. 27 [cited 2024 May 7];35(1):561-5. Available from: http://sjis.scandinavian-iris.org/index.php/sjis/article/view/350