Gaya APA
Sholikhah, I, M., Collie, J.
(2005,2006).
Speaking 1: Student's Book
.
Yogyakarta:
Kanisius.
Gaya MLA
Sholikhah, Ika, Maratus., Collie, Joane.
"Speaking 1: Student's Book".
Yogyakarta:
Kanisius,
2005,2006.
Text.