EDGINTON, Christopher R., and Walter de OLIVEIRA. “Youth Development: A Program Framework: 青少年發展之計劃架構”. Asian Journal of Physical Education & Recreation 1, no. 2 (December 1, 1995): 22–27. Accessed April 21, 2024. https://ejournals.lib.hkbu.edu.hk/index.php/ajper/article/view/1161.