Hermawan, Hedi Ardiyanto, Subagyo Subagyo, and Nur Sita Utami. “The Experience and Substance of Aquatic Activities Learning in Elementary Schools from the Perspective of Physical Education Teachers”. Jurnal Keolahragaan 10, no. 1 (April 25, 2022): 53–62. Accessed June 8, 2025. https://jurnal.uny.ac.id/index.php/jolahraga/article/view/47826.