Winny, Fedayen Najma Haqq, Danang Prama Dhani, and Ida Zubaida. 2026. “Comparative Analysis Of Resistance Band And Swim Parachute Belt Training On The Enhancement Of 50m Butterfly Stroke Swimming Speed”. SPIN: Journal of Sport Performance Indonesia 1 (1):10-17. https://www.journalmpci.com/index.php/spin/article/view/1465.