Udomsap, Kritsanon. “Academic Administration in the Digital Era Based on the Threefold Training Principles of School Administrators under the Loei Primary Educational Service Area Office 1: Academic Administration in the Digital Era Based on the Threefold Training Principles of School Administrators under the Loei Primary Educational Service Area Office 1”. RATANABUTH JOURNAL 8, no. 2 (August 31, 2026): 324–336. accessed September 3, 2026. https://so07.tci-thaijo.org/index.php/rtnb/article/view/11349.