Muhammad Fajar In’am Maulana, Teguh Santoso, Joko Sulistyono. PERBASASI BASEBALL SPORTS BRANCH DEVELOPMENT MANAGEMENT (ALL INDONESIAN SOFTBALL BASEBALL UNION) PROVINCIAL MANAGEMENT OF DKI JAKARTA. JISEAPE [Internet]. 2024Jan.11 [cited 2024May20];4(1):31-9. Available from: http://ejournal.utp.ac.id/index.php/JISEAPE/article/view/3243