Gaya APA
Skills Booklet Pre Intermediate (A2). (2010).
Jakarta:
Kesaint Blanc.
Gaya Chicago
Skills Booklet Pre Intermediate (A2).
.
Jakarta:
Kesaint Blanc,
2010.
Text.
Gaya MLA
Skills Booklet Pre Intermediate (A2).
.
Jakarta:
Kesaint Blanc,
2010.
Text.
Gaya Turabian
Skills Booklet Pre Intermediate (A2).
Jakarta:
Kesaint Blanc,
2010.
Print.