SYUKRIADI, Syukriadi -. Design of Presence System as a Form of Monitoring Lecturer Attendance Data at UPT Labor PPNP. Knowbase : International Journal of Knowledge in Database, [S. l.], v. 3, n. 1, p. 27–36, 2023. DOI: 10.30983/knowbase.v3i1.6357. Disponível em: https://ejournal.uinbukittinggi.ac.id/index.php/ijokid/article/view/6357. Acesso em: 17 mar. 2026.