Xie, Xiuye, Xiaoping Fan, and Tanjian Liang. “A Systematic Review of School-Based Physical Activity Programs on Physical Fitness, Cognition, and Affective Outcomes in Early Childhood”. Journal of International Education and Practice 6, no. 1 (June 30, 2023): 1–9. Accessed August 23, 2025. https://journals.bilpubgroup.com/index.php/jiep/article/view/5363.