Gaya APA
Official Guide to the TOEFL ITP Test. (2016).
Jakarta:
Erlangga.
Gaya Chicago
Official Guide to the TOEFL ITP Test.
.
Jakarta:
Erlangga,
2016.
Text.
Gaya MLA
Official Guide to the TOEFL ITP Test.
.
Jakarta:
Erlangga,
2016.
Text.
Gaya Turabian
Official Guide to the TOEFL ITP Test.
Jakarta:
Erlangga,
2016.
Print.