Belhaj, Muftah Mohamed S., Soegiyanto Soegiyanto, Hari Setijono, Hari Pramono, Sulaiman Sulaiman, and Didi Yudha Pranata. “New Star Football Academy Fitness Players Aged 3 and 14 Years”. International Conference on Science, Education, and Technology 9, no. 1 (September 8, 2023): 506–509. Accessed May 14, 2024. https://proceeding.unnes.ac.id/ISET/article/view/2466.