Gaya APA
Alter, Steven.. (2002).
Information systems .
New Jersey:
Prentice-Hall.
Gaya Chicago
Alter, Steven..
Information systems.
New Jersey:
Prentice-Hall,
2002.
.
Gaya MLA
Alter, Steven..
Information systems.
New Jersey:
Prentice-Hall,
2002.
.
Gaya Turabian
Alter, Steven..
Information systems.
New Jersey:
Prentice-Hall,
2002.
.