1.
The Relationship Between Interval Training Frequency and Aerobic Endurance Level Among Futsal Extracurricular Students at SMPN 3 Ungaran. Compet. J. Pendidik. Kepelatihan Olahraga. 2025;17(2):1909-1916. Accessed March 19, 2026. https://competitor.idjournal.eu/index.php/competitor/article/view/97