Gaya APA
Writing With A Purpose. (1989).
Boston:
HOUGHTON MIFLLIN.
Gaya Chicago
Writing With A Purpose.
8th ed..
Boston:
HOUGHTON MIFLLIN,
1989.
.
Gaya MLA
Writing With A Purpose.
8th ed..
Boston:
HOUGHTON MIFLLIN,
1989.
.
Gaya Turabian
Writing With A Purpose.
Boston:
HOUGHTON MIFLLIN,
1989.
.