Gaya APA
Toefl = test of english as a foreign language. (2005).
Yogyakarta:
Media Abadi.
Gaya Chicago
Toefl = test of english as a foreign language.
.
Yogyakarta:
Media Abadi,
2005.
Text.
Gaya MLA
Toefl = test of english as a foreign language.
.
Yogyakarta:
Media Abadi,
2005.
Text.
Gaya Turabian
Toefl = test of english as a foreign language.
Yogyakarta:
Media Abadi,
2005.
Print.