Gaya APA
Azar. (2005).
Basic english grammar, third edition .
American:
longman.
Gaya Chicago
Azar.
Basic english grammar, third edition.
American:
longman,
2005.
Text.
Gaya MLA
Azar.
Basic english grammar, third edition.
American:
longman,
2005.
Text.
Gaya Turabian
Azar.
Basic english grammar, third edition.
American:
longman,
2005.
Print.