Fajar Harianto, Aryono, Ika Novitaria Marani, and Susilo S. “Evaluation of the Achievement Development Program of the Dki Jakarta Province Softball Sports ”. Gladi : Jurnal Ilmu Keolahragaan 14, no. 01 (March 31, 2023): 53 - 63. Accessed May 2, 2025. http://103.8.12.212:33180/unj/index.php/gjik/article/view/27102.