Kuakiatkan S, Saengsawang W. THE 21ST CENTURY ADMINISTRATIVE SKILLS OF SCHOOL ADMINISTRATORS UNDER CHACHOENGSAO VOCATIONAL INSTITUES. MCU SSR [internet]. 2021 Sep. 19 [cited 2025 Apr. 8];10(3):68-80. available from: https://so03.tci-thaijo.org/index.php/jssr/article/view/252089