Pitukkecha, A., & Sod-ium, P.- on. (2023). Development of Linear Structural Equation Model of Factors Affecting the Effectiveness of Schools under the Office of Primary Educational Service Area, Loei Province: Development of Linear Structural Equation Model of Factors Affecting the Effectiveness of Schools under the Office of Primary Educational Service Area, Loei Province. RATANABUTH JOURNAL, 5(1), 254–270. retrieved from https://so07.tci-thaijo.org/index.php/rtnb/article/view/2543