Gaya APA
Toefl ITP assessment series practice tests. (2010).
Jakarta:
Erlangga.
Gaya Chicago
Toefl ITP assessment series practice tests.
Cetakan 2019.
Jakarta:
Erlangga,
2010.
Text.
Gaya MLA
Toefl ITP assessment series practice tests.
Cetakan 2019.
Jakarta:
Erlangga,
2010.
Text.
Gaya Turabian
Toefl ITP assessment series practice tests.
Jakarta:
Erlangga,
2010.
Print.