Hendrawan D, zega A sinsearif, Tambunan ADG, Maulana A, Matondang A, Nababan P. Exercise Management as a Predictor of Success in Extracurricular Activities among Junior High School Students in Medan. ISORI KAMPAR JOURNAL [Internet]. 2025 Mar. 30 [cited 2025 Nov. 12];2(01):24-9. Available from: https://isorikampar.inspiree.review/index.php/joska/article/view/23