Nurhayati UA, Nurfajrianti N, Kristiana D. Pengaruh fartlek training terhadap peningkatan kebugaran pada remaja: literature review. J. Phys. Ther. [Internet]. 2022 Feb. 15 [cited 2024 Jul. 19];1(2). Available from: https://ejournal.unisayogya.ac.id/index.php/JITU/article/view/2310