Bayyat, Manal M., and Zainab Abu- Muili. “Motivation for Sport Participation in Boxing and Fitness Clubs from the Perspective of Self-Determination Theory”. Dirasat: Educational Sciences 48, no. 2 (June 1, 2021): 187–198. Accessed December 23, 2025. https://dsr.ju.edu.jo/djournals/index.php/Edu/article/view/2718.