WITRIYONO, Harry; FERNANDEZ, Sandhy. Enkripsi Base 64, Hashing SHA1 dan MD5 pada QR Code Presensi Kuliah. JSAI (Journal Scientific and Applied Informatics), [S. l.], v. 4, n. 2, p. 263–272, 2021. DOI: 10.36085/jsai.v4i2.1680. Disponível em: https://jurnal.umb.ac.id/index.php/JSAI/article/view/1680. Acesso em: 29 jun. 2026.