Hidayat, R., Setyawati, H., & Mukarromah, S. B. (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