Gaya APA
Understanding Information Technology. (1990).
New York:
Prentice Hall.
Gaya Chicago
Understanding Information Technology.
Ed.2.
New York:
Prentice Hall,
1990.
.
Gaya MLA
Understanding Information Technology.
Ed.2.
New York:
Prentice Hall,
1990.
.
Gaya Turabian
Understanding Information Technology.
New York:
Prentice Hall,
1990.
.