Addriana Bulu Baan, Didik Purwanto, Fredrik Alfrets Makadada, Pangondian Hotliber Purba, and Yeni Marlina. “Effects of an Autonomy-Supportive Choice-Based Adaptive Physical Activity Program on Motor Competence, Physical Activity Enjoyment, Autonomous Motivation, and Psychological Need Satisfaction in Children With Intellectual Disabilities: A Randomized Controlled Trial”. International Journal of Sport Studies for Health (October 16, 2026). Accessed October 18, 2026. https://journals.kmanpub.com/index.php/Intjssh/article/view/6394.