Gaya APA
Distribution indonesia. (1992).
Jakarta:
Pusat Data Business Indonesia.
Gaya Chicago
Distribution indonesia.
.
Jakarta:
Pusat Data Business Indonesia,
1992.
Text.
Gaya MLA
Distribution indonesia.
.
Jakarta:
Pusat Data Business Indonesia,
1992.
Text.
Gaya Turabian
Distribution indonesia.
Jakarta:
Pusat Data Business Indonesia,
1992.
Print.