SAYMOUNKHAM, A., SANGDUANGCHA, S., MAHAPHOM, S., & ນຸຖາພອນ ທ. (2025). The Relationship between the Leadership Styles and School Effectiveness at Secondary Schools in Sekong Province: Master’s student, Education Science, Faculty of Education, Champasak University This study is a study of the relationship between the style of leadership and effective schools in comprehensive secondary education . Champasack University Scientific Journal, 9(1), 244–260. https://doi.org/10.71026/cusj.v9i1.134