The Effect of Fartlek Training On Increasing Cardiovascular Endurance And Agility of Male Handball Athletes. Compet. J. Pendidik. Kepelatihan Olahraga [Internet]. 2026 Feb. 25 [cited 2026 Feb. 26];18(1):1271-83. Available from: https://competitor.idjournal.eu/index.php/competitor/article/view/627