Gaya APA
Skillss booklet : CEF level Upper intermediate (B2). (2010).
Jakarta:
Kesaint Blanc Publishing.
Gaya Chicago
Skillss booklet : CEF level Upper intermediate (B2).
Ed.1.
Jakarta:
Kesaint Blanc Publishing,
2010.
Text.
Gaya MLA
Skillss booklet : CEF level Upper intermediate (B2).
Ed.1.
Jakarta:
Kesaint Blanc Publishing,
2010.
Text.
Gaya Turabian
Skillss booklet : CEF level Upper intermediate (B2).
Jakarta:
Kesaint Blanc Publishing,
2010.
Print.