M. IRFAN; HARAHAP, Agustin Sastrawan; KHAIRUL USMAN; HARIADI; HASIBUAN, Muhammad Nustan. PROTOTIPE INDUSTRI OLAHRAGA EDU ORTRAD UNIMED: Rp. 65.000. Bina Guna Press, [S. l.], p. 1–64, 2023. Disponível em: https://jurnal.stokbinaguna.ac.id/index.php/BGP/article/view/1387. Acesso em: 24 sep. 2026.