Lertpalangwet, Pannarai, and Khukrit Lertpalangwet. “21st Century Administrative Skills Of School Administrators According To The Opinions Of Government Teachers Under Samutsakhon Primary Educational Service Area Office: 21st Century Administrative Skills Of School Administrators According To The Opinions Of Government Teachers Under Samutsakhon Primary Educational Service Area Office”. RATANABUTH JOURNAL 5, no. 1 (April 30, 2023): 485–498. accessed August 11, 2025. https://so07.tci-thaijo.org/index.php/rtnb/article/view/2713.