Paewbanjong, Jirapa, and Panot Namawiroj. “Administrative Skills of Small School Administrators Affecting Being a Happy Organization under Samut Songkhram Primary Educational Service Area Office”. Journal of Graduate MCU KhonKaen Campus 12, no. 3 (September 30, 2025): 455–466. accessed December 6, 2025. https://so02.tci-thaijo.org/index.php/jg-mcukk/article/view/278525.