Udomsap, Kritsanon. 2026. “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 (2). Yasothon, Thailand:324-36. https://so07.tci-thaijo.org/index.php/rtnb/article/view/11349.