Gaya APA
A guide of speaking & writing good english. (2003).
Bandung:
Yrama Widya.
Gaya Chicago
A guide of speaking & writing good english.
.
Bandung:
Yrama Widya,
2003.
Text.
Gaya MLA
A guide of speaking & writing good english.
.
Bandung:
Yrama Widya,
2003.
Text.
Gaya Turabian
A guide of speaking & writing good english.
Bandung:
Yrama Widya,
2003.
Print.