Gaya APA
DOFF, A, ., BECKET, C, .
(2006).
LISTENING STUDENT'S BOOK 1
(
2)
.
JAKARTA:
UGM Press.
Gaya MLA
DOFF, ADRIAN, ., BECKET, CAROLYN, .
"LISTENING STUDENT'S BOOK 1".
2
JAKARTA:
UGM Press,
2006.
Text.