The Application of MS. Office File Protection using DES (Data Encryption Standard) Algorithm. Jurnal Teknologi dan Sistem Informasi, [S. l.], v. 4, n. 2, p. 77–90, 2013. Disponível em: http://journal.stmikbandungbali.ac.id/index.php/tsi/article/view/1. Acesso em: 23 sep. 2026.