มีทรัพย์ทอง ช. and ศิริวงศ์ พ. (2016) “The meaning and origin of volunteer activities : process and guidelines of students in Faculty of Business Administration. Huachiew Chalermprakiet University”, Business Review Journal, 8(2), pp. 165–181. Available at: https://so01.tci-thaijo.org/index.php/bahcuojs/article/view/125595 (Accessed: 19 April 2024).