Gaya APA
Collie, J.
(1991).
Speaking Theacher's Book 2
(
s-2)
.
Yogyakarta:
Kanisius.
Gaya MLA
Collie, Joanne.
"Speaking Theacher's Book 2".
s-2
Yogyakarta:
Kanisius,
1991.
400_Language.