Gaya APA
Stallings, William. (1988).
Network Security Essentials .
England:
Pearson Education International.
Gaya Chicago
Stallings, William.
Network Security Essentials.
England:
Pearson Education International,
1988.
Text.
Gaya MLA
Stallings, William.
Network Security Essentials.
England:
Pearson Education International,
1988.
Text.
Gaya Turabian
Stallings, William.
Network Security Essentials.
England:
Pearson Education International,
1988.
Print.