SIREGAR, I. M. Pengembangan Attendance System Berbasis Android. SISINFO : Jurnal Sistem Informasi dan Informatika, [S. l.], v. 2, n. 1, p. 48–54, 2020. Disponível em: https://jurnalunibi.unibi.ac.id/ojs/index.php/SisInfo/article/view/250. Acesso em: 14 feb. 2026.