Husnan, Khoirul, et al. “Mastery of Physical Literacy, Physical Activity, and Physical Fitness: A Comparative Study of Elementary School and Madrasah Ibtidaiah Students”. Sriwijaya Journal of Sport, vol. 3, no. 1, Nov. 2023, pp. 39-50, https://doi.org/10.55379/sjs.v3i1.976.