Gaya APA
Azar, Betty Schrampfer. (1999).
Understanding And Use English Grammar (ed.3).
Amerika:
Longman.
Gaya Chicago
Azar, Betty Schrampfer.
Understanding And Use English Grammar.
ed.3
Amerika:
Longman,
1999.
Text Book.
Gaya MLA
Azar, Betty Schrampfer.
Understanding And Use English Grammar.
ed.3
Amerika:
Longman,
1999.
Text Book.
Gaya Turabian
Azar, Betty Schrampfer.
Understanding And Use English Grammar.
ed.3
Amerika:
Longman,
1999.
Text Book.