Khairul Usman, D. Karo-Karo, W. Silalahi, Winara, and F. S. Siregar. “Pendidikan Jasmani Sekolah Dasar”. Bina Guna Press, Oct. 2022, pp. 1-94, https://jurnal.stokbinaguna.ac.id/index.php/BGP/article/view/669.