D. Hendrawan, A. S. Zega, A. D. G. Tambunan, A. Maulana, A. Matondang, and P. Nababan, “Exercise Management as a Predictor of Success in Extracurricular Activities among Junior High School Students in Medan”, JOSKA, vol. 2, no. 01, pp. 24–29, Mar. 2025, doi: 10.53905/joska.v2i01.04.