Gaya APA
Quah, J. (1993).
Preston Assesment Papper english 1 : With Answerws / Josephine Quah .
Jakarta:
Binarupa Aksara.
Gaya MLA
Quah, Josephine.
"Preston Assesment Papper english 1 : With Answerws / Josephine Quah".
Jakarta:
Binarupa Aksara,
1993.
Buku.