Baihaqi Y, Kusumawardhana B, Wiyanto A, Siregar MJ. The relationship between physical activity and physical fitness among adolescents aged 15–16 years. Sriwij. j. Sport [Internet]. 2026 Feb. 28 [cited 2026 Mar. 20];5(2):557-69. Available from: https://sjs.ejournal.unsri.ac.id/index.php/sjs/article/view/227