Gaya APA
Collie, J.
(1991).
Speaking Theacher's Book 1
(
s-1)
.
Yogyakarta:
Kanisius.
Gaya MLA
Collie, Joanne.
"Speaking Theacher's Book 1".
s-1
Yogyakarta:
Kanisius,
1991.
400_Language.