Ihsan, A., A. M. Fadlih, M. Q. Hasyim, and A. Amirzan. “The Interplay Between Physical Fitness, Nutritional Status, and Academic Performance in Physical Education: A Systematic Review”. Physical Education Theory and Methodology, vol. 25, no. 4, July 2025, pp. 1010-23, doi:10.17309/tmfv.2025.4.31.