Gaya APA
Azar, Betty Schramfer. (1999).
Understanding And Using English Grammar .
USA:
Longman.
Gaya Chicago
Azar, Betty Schramfer.
Understanding And Using English Grammar.
USA:
Longman,
1999.
Text.
Gaya MLA
Azar, Betty Schramfer.
Understanding And Using English Grammar.
USA:
Longman,
1999.
Text.
Gaya Turabian
Azar, Betty Schramfer.
Understanding And Using English Grammar.
USA:
Longman,
1999.
Print.