HANAFI, Suriah; M. IMRAN HASANUDDIN. The Effect of High-Intensity Interval Training (HIIT) Program on Increasing 50m Freestyle Sprint Speed in Adolescent Swimmers. Journal Physical Health Recreation (JPHR), [S. l.], v. 5, n. 2, p. 403–407, 2025. DOI: 10.55081/jphr.v5i2.4009. Disponível em: https://jurnal.stokbinaguna.ac.id/index.php/JPHR/article/view/4009. Acesso em: 22 oct. 2026.