Gaya APA
Ariyus, D., Rosari, R, W.
(2006).
Computer security
(
1)
.
Yogyakarta:
Andi.
Gaya MLA
Ariyus, Dony., Rosari, Renati, Winong.
"Computer security".
1
Yogyakarta:
Andi,
2006.
Text.