HERAWATI, Citra Widya. Verification Of Student Diplomas Based On Qr Code. Knowbase : International Journal of Knowledge in Database, [S. l.], v. 2, n. 2, p. 156–165, 2022. DOI: 10.30983/knowbase.v2i2.5851. Disponível em: https://ejournal.uinbukittinggi.ac.id/index.php/ijokid/article/view/5851. Acesso em: 20 mar. 2026.