SUNDAWA, B. V.; LUBIS, F.; CHOLISH, C. Implementation of attendance machine for entrance access system based on barcode scanning . Jurnal Mandiri IT, [S. l.], v. 11, n. 3, p. 126–131, 2023. Disponível em: https://ejournal.isha.or.id/index.php/Mandiri/article/view/183. Acesso em: 14 may. 2026.