Chusaini, M., Setijono, H., & Mintarto, E. (2020). THE 50 M FREE STYLE SWIMMING STROKE SPEED IMPROVEMENT BY USING HAND PADDLE SWIM AND PARACHUTE SWIM. JIPES - JOURNAL OF INDONESIAN PHYSICAL EDUCATION AND SPORT, 6(01), 7–16. Retrieved from https://journal.unj.ac.id/unj/index.php/jipes/article/view/17010