Gaya APA
Adam, Billy. (2011).
TOEFL Workshop In 30 Minutes .
Yogyakarta:
Pustaka Solomon.
Gaya Chicago
Adam, Billy.
TOEFL Workshop In 30 Minutes.
Yogyakarta:
Pustaka Solomon,
2011.
Text.
Gaya MLA
Adam, Billy.
TOEFL Workshop In 30 Minutes.
Yogyakarta:
Pustaka Solomon,
2011.
Text.
Gaya Turabian
Adam, Billy.
TOEFL Workshop In 30 Minutes.
Yogyakarta:
Pustaka Solomon,
2011.
Print.