The Effect of Fartlex Exercise on EnduranceFutsal Players for High School State 11 Jambi City. Compet. J. Pendidik. Kepelatihan Olahraga [Internet]. 2025 Oct. 8 [cited 2025 Dec. 7];17(3):2522-30. Available from: http://competitor.ojsunm.ac.id/index.php/competitor/article/view/352