TEH, YU FUNG; RAMLI, Sofia Najwa. Implementation of Multi-Factor Authentication on A Vaccination Record System. Applied Information Technology And Computer Science, [S. l.], v. 4, n. 1, p. 019–039, 2023. Disponível em: https://penerbit.uthm.edu.my/periodicals/index.php/aitcs/article/view/7327. Acesso em: 8 apr. 2026.