มีทรัพย์ทอง ชัชราวรรณ, and ศิริวงศ์ พิทักษ์. “The meaning and origin of volunteer activities : process and guidelines of students in Faculty of Business Administration. Huachiew Chalermprakiet University”. Business Administration and Management Journal Review 8, no. 2 (December 30, 2016): 165–181. accessed October 15, 2026. https://so01.tci-thaijo.org/index.php/bahcuojs/article/view/125595.