SIRIMART S, Sodium P- on. Ethical Leadership Affecting Efficiency of Personnel Management of Schools Under Loei Primary Education Service Area Office 1: Ethical Leadership Affecting Efficiency of Personnel Management of Schools Under Loei Primary Education Service Area Office 1. rtnb [internet]. 2023 Apr. 30 [cited 2026 Oct. 2];5(1):558-73. available from: https://so07.tci-thaijo.org/index.php/rtnb/article/view/2682