na INLIS000000000007413 20210325095153 0010-0321000124 ta 210325 | | | 978-0-13-187319-3 William Stallings Pengarang Cryptography and Network Security : Principles and Practices ed. 4 Network Security Prentice Hall, 2005 rdacontent Teks rdamedia Komputer rdacarrier Sumber Sambung Jaring