NASUTION, T. H.; SIREGAR, I. S.; FAHMI, F. Design of Portable Fingerprint System Prototype for Student Presence Integrated with Academic Information System at the Universitas Sumatera Utara. Simetrikal: Journal of Engineering and Technology, [S. l.], v. 1, n. 1, p. 47–54, 2019. DOI: 10.32734/jet.v1i1.688. Disponível em: https://talenta.usu.ac.id/jet/article/view/688. Acesso em: 18 aug. 2025.