Baihaqi, Y. .; Kusumawardhana, B. .; Wiyanto, A. .; Siregar, M. J. . The Relationship Between Physical Activity and Physical Fitness Among Adolescents Aged 15–16 Years. Sriwij. j. Sport 2026, 5 (2), 557-569. https://doi.org/10.55379/sjs.v5i2.227.