Gaya APA
STALLINGS, W., HIRSCH, M, [. (2011).
Cryptography and network security : (5th ed.).
Boston:
Prentice Hall.
Gaya MLA
STALLINGS, William., HIRSCH, Michael, [ed.].
"Cryptography and network security :".
5th ed.
Boston:
Prentice Hall,
2011.
Buku.