AL AMIN, I. H.; LUSIANA, V. .; HARTONO, B.; WAHYU, D. . QR Code-Based Attendance System for Contact Tracking Post-Pandemic. CogITo Smart Journal, [S. l.], v. 10, n. 1, p. 15–29, 2024. DOI: 10.31154/cogito.v10i1.490.436-450. Disponível em: https://cogito.unklab.ac.id/index.php/cogito/article/view/490. Acesso em: 24 jul. 2025.