Gaya APA
Understanding and using English grammar. (1989).
new jersey:
Prentice-Hall, Inc.
Gaya Chicago
Understanding and using English grammar.
2nd ed..
new jersey:
Prentice-Hall, Inc,
1989.
.
Gaya MLA
Understanding and using English grammar.
2nd ed..
new jersey:
Prentice-Hall, Inc,
1989.
.
Gaya Turabian
Understanding and using English grammar.
new jersey:
Prentice-Hall, Inc,
1989.
.