HARAHAP, Agustin Sastrawan; M. IRFAN; KHAIRUL USMAN. KEWIRAUSAHAAN OLAHRAGA: Rp. 65.000. Bina Guna Press, [S. l.], p. 1–149, 2023. Disponível em: https://www.jurnal.stokbinaguna.ac.id/index.php/BGP/article/view/1388. Acesso em: 10 nov. 2026.