Nirwansyah, Waristra Tyo, Bayu Agung Pramono, Gigih Siantoro, Muhammad, I Dewa Made Aryananda Wijaya Kusuma, Muhammad Kharis Fajar, and Mohamad Rozi bin Yacob. “Olympics: Improving the Competition Strategy in Each Skill Technique of Elite Swimmers for the 400 Meters Freestyle”. Physical Education Theory and Methodology 24, no. 6 (December 10, 2024): 928–935. Accessed August 25, 2026. https://tmfv.com.ua/journal/article/view/2901.