Gaya APA
Azar, Betty Schrampfer. (1989).
Understanding and using English grammar (2nd).
New Jersey:
Prentice-Hall, Inc..
Gaya Chicago
Azar, Betty Schrampfer.
Understanding and using English grammar.
2nd
New Jersey:
Prentice-Hall, Inc.,
1989.
Text.
Gaya MLA
Azar, Betty Schrampfer.
Understanding and using English grammar.
2nd
New Jersey:
Prentice-Hall, Inc.,
1989.
Text.
Gaya Turabian
Azar, Betty Schrampfer.
Understanding and using English grammar.
2nd
New Jersey:
Prentice-Hall, Inc.,
1989.
Print.