DAMANIK, A. R.; HARTAMA, D.; SUMARNO, S.; GUNAWAN, I. Sistem Presensi Pegawai Berbasis Digital Signatures Dan Gps Location. Dike, [S. l.], v. 1, n. 1, p. 30–36, 2023. DOI: 10.69688/dike.v1i1.11. Disponível em: https://ejournal.cvrobema.com/index.php/dike/article/view/11. Acesso em: 17 sep. 2025.