FAHLOME, D.; ALYA, D. Incoming Mail Security Using AES-128 Encryption with QR Code Verification at the North Sumatra Provincial Inspectorate. Jurnal Metrokom : Media Teknik Elektro dan Komputer, [S. l.], v. 2, n. 2, p. 116–135, 2025. DOI: 10.65371/metrokom.v2i2.129. Disponível em: https://ejournal.ypayb.or.id/index.php/metrokom/article/view/129. Acesso em: 14 aug. 2026.