MAK, D.; NG IP, K. W. J. Intrinsic Motivation of University Students in Participating in Physical Fitness Training Programs: 大學生參加健身訓練課程的內發動機. Asian Journal of Physical Education & Recreation, [S. l.], v. 5, n. 2, p. 31–34, 1999. DOI: 10.24112/ajper.51226. Disponível em: https://ejournals.lib.hkbu.edu.hk/index.php/ajper/article/view/1226. Acesso em: 25 feb. 2024.