Nugraha AA, Yunus M, Widiawati P. Survey on physical fitness levels of athletes aged 13-15 years old at Satria Mandiri Soccer School, Bojonegoro Regency. J. Sci. Educ. [Internet]. 2022Dec.13 [cited 2024Nov.22];3(2):113-21. Available from: https://jse.rezkimedia.org/index.php/jse/article/view/164