APA Style
Betsis, Andrew, Mamas, Lawrence. (2011).
Succeed In IELTS .
Jakarta:
Penerbit Erlangga.
Chicago Style
Betsis, Andrew, Mamas, Lawrence.
Succeed In IELTS.
Jakarta:
Penerbit Erlangga,
2011.
Text.
MLA Style
Betsis, Andrew, Mamas, Lawrence.
Succeed In IELTS.
Jakarta:
Penerbit Erlangga,
2011.
Text.
Turabian Style
Betsis, Andrew, Mamas, Lawrence.
Succeed In IELTS.
Jakarta:
Penerbit Erlangga,
2011.
Print.