Karisman, A., and M. Subali. “Otomatisasi Sistem Presensi Perkuliahan Di Sekolah Tinggi Teknik Cendekia”. Jurnal Ilmiah Komputasi, vol. 16, no. 3, Dec. 2017, pp. 209-26, https://ejournal.jak-stik.ac.id/index.php/komputasi/article/view/100.