Gaya APA
KAPLAN, .
(2015).
TOEFL IBT; Premier 2016-2017 with 4 Practice Tests + CD
.
USA:
KAPLAN PUBLISHING.
Gaya MLA
KAPLAN, .
"TOEFL IBT; Premier 2016-2017 with 4 Practice Tests + CD".
USA:
KAPLAN PUBLISHING,
2015.
Text.