Utama, Muh Ilham Budi. “Perbandingan Pengaruh Permainan Baseball Dengan Permainan Kippers Terhadap Kesegaran Jasmani Murid SD”. Indonesian Journal of Physical Activity 1, no. 1 (April 13, 2021): 23-34. Accessed November 24, 2024. https://ijophya.org/index.php/ijophya/article/view/1.