DU, Mei. “Job Satisfaction Among Volunteers of the 2007 Special Olympics World Summer Games: 2007世界夏季特殊奧林匹克運動會義工滿意度調查”. Asian Journal of Physical Education & Recreation 15, no. 2 (December 1, 2009): 29–34. Accessed April 25, 2024. https://ejournals.lib.hkbu.edu.hk/index.php/ajper/article/view/1775.