Gaya APA
Duke, T. et al
(2001).
TOEIC : Offical test-preparation guide
(
-)
.
Amerika serikat:
Thomson Peterson\'s.
Gaya MLA
Duke, Trina. et al.
"TOEIC : Offical test-preparation guide".
-
Amerika serikat:
Thomson Peterson\'s,
2001.
UMUM.