Gaya APA
Betsis, Andrew Betsis; Lawrence Mamas. (2011).
Succeed in IELTS .
Jakarta:
Erlangga.
Gaya Chicago
Betsis, Andrew Betsis; Lawrence Mamas.
Succeed in IELTS.
Jakarta:
Erlangga,
2011.
Textbook.
Gaya MLA
Betsis, Andrew Betsis; Lawrence Mamas.
Succeed in IELTS.
Jakarta:
Erlangga,
2011.
Textbook.
Gaya Turabian
Betsis, Andrew Betsis; Lawrence Mamas.
Succeed in IELTS.
Jakarta:
Erlangga,
2011.
Textbook.