ซื่อตรง ว, จิรโรจน์ภิญโญ น. The Ethics of Secondary School Administrators in the 21st Century under the Regional Education Office 4 . MCU SSR [Internet]. 2020 Jun. 8 [cited 2024 May 19];6(2-03):937-48. Available from: https://so03.tci-thaijo.org/index.php/jssr/article/view/243763