The Effect of Fartlek Training On Increasing Cardiovascular Endurance And Agility of Male Handball Athletes. COMPETITOR: Jurnal Pendidikan Kepelatihan Olahraga, [S. l.], v. 18, n. 1, p. 1271–1283, 2026. DOI: 10.26858/cpjok.v18i1.627. Disponível em: https://competitor.idjournal.eu/index.php/competitor/article/view/627. Acesso em: 30 may. 2026.