Mardiani U, Sugiyanto S, Hidayatullah MF. Difference in the Effect of Technical - Physical Exercise Combination on the Speed of 25 Free Meter Style (Crawl) Reviewed From Age Group. J Educ Health Sport [Internet]. 2019 May 30 [cited 2024 Jul. 17];9(5):497-50. Available from: https://apcz.umk.pl/JEHS/article/view/6965