Akhsin S, Sukiri, Sulaiman I, Siregar NM. Futsal Defense Strategy Model for Athletes 15-17 Years Old. GJIK [Internet]. 2023 Oct. 1 [cited 2024 Nov. 5];14(03):330-47. Available from: https://journal.unj.ac.id/unj/index.php/gjik/article/view/36209