Behzadnia B, Ameen Abdullah S, Eskandarnejad M. The Effect of Gamification in Physical Education on Motivational Indicators and Perceived Competence among Lower Secondary School Students. JAYPS. Published online February 10, 2027:1-16. Accessed August 20, 2026. https://journals.kmanpub.com/index.php/jayps/article/view/5932