Matitaputty, Johanna. “The Relationship Between Leg Muscle Strength, Arm Muscles and Confidence With 50 Meter Freestyle Swimming Speed”. International Journal of Education, Information Technology, and Others 6, no. 2 (April 17, 2023): 149-164. Accessed April 20, 2024. https://jurnal.peneliti.net/index.php/IJEIT/article/view/4184.