พรหมเมตตา จ, อมตาริยกุล ว, หอมสิน น. The Administrators Skills Effecting Happy Workplace in School Under Udon Thani Primary Educational Service Area Office 2. Ganesha J [internet]. 2019 Jun. 30 [cited 2026 Sep. 13];15(1):167-88. available from: https://so01.tci-thaijo.org/index.php/pikanasan/article/view/174724