Ganda, Prima, Tri Nurharsono, Heny Setyawati, and Puji Purwono. “Survey of Taekwondo Sports Equipment Business Management in Semarang City”. Indonesian Journal of Sport Management 1, no. 1 (April 26, 2021): 31–40. Accessed September 1, 2024. https://ejournal.unma.ac.id/index.php/ijsm/article/view/990.