ISMAIL. HASIL BELAJAR RENANG GAYA BEBAS MELALUI MODEL SISTEM PERSONAL DI SMA N 1 KUALUH HULU PROVINSI SUMATRA UTARA. Jurnal Locomotor, [S. l.], v. 8, n. 9, 2022. Disponível em: https://locomotor.untan.ac.id/index.php/fe/article/view/57. Acesso em: 19 oct. 2025.