Triadi, Albet, et al. “Perancangan Sistem Informasi Presensi Magang Di PTPN IV Regional IV Berbasis Web”. Jurnal Pendidikan Tambusai, vol. 8, no. 2, July 2024, pp. 27338-46, http://jptam.org/index.php/jptam/article/view/16830.