Gaya APA
My english workbook! IX. (2006).
Jakarta:
Erlangga.
Gaya Chicago
My english workbook! IX.
.
Jakarta:
Erlangga,
2006.
.
Gaya MLA
My english workbook! IX.
.
Jakarta:
Erlangga,
2006.
.
Gaya Turabian
My english workbook! IX.
Jakarta:
Erlangga,
2006.
.