Gaya APA
Sulaiman, S.B. (2011).
Workbook Basic English 6 .
Jakarta:
Yudistira.
Gaya Chicago
Sulaiman, S.B.
Workbook Basic English 6.
Jakarta:
Yudistira,
2011.
Text.
Gaya MLA
Sulaiman, S.B.
Workbook Basic English 6.
Jakarta:
Yudistira,
2011.
Text.
Gaya Turabian
Sulaiman, S.B.
Workbook Basic English 6.
Jakarta:
Yudistira,
2011.
Print.