Hidayat, Ropik, Heny Setyawati, and Siti Baitul Mukarromah. 2026. “Preliminary Psychometric Evidence for PLAYfun and PLAYself Among Indonesian Elementary School Students: Item Validity and Internal Consistency”. Physical Education Learning, Teaching, and Assessment 1 (1): 13-24. https://ejournals.pjki.or.id/index.php/pelta/article/view/17.