Gaya APA
Ester, M. et al
(2010).
Improve Your Toefl Vocabulary In Seconds
.
Yogyakarta:
DIVA PRESS.
Gaya MLA
Ester, Monica. et al.
"Improve Your Toefl Vocabulary In Seconds".
Yogyakarta:
DIVA PRESS,
2010.
Koleksi Umum.