Gaya APA
Azar, Betty Schampfrer. (1996).
Basic English Grammar .
America:
Longman.
Gaya Chicago
Azar, Betty Schampfrer.
Basic English Grammar.
America:
Longman,
1996.
Text.
Gaya MLA
Azar, Betty Schampfrer.
Basic English Grammar.
America:
Longman,
1996.
Text.
Gaya Turabian
Azar, Betty Schampfrer.
Basic English Grammar.
America:
Longman,
1996.
Print.