Gaya APA
John, C, G.
(2002).
A Handbook of Techniques for Formative Evalution
.
Inggris:
Routledge Falmer.
Gaya MLA
John, COWAN.Judith, George.
"A Handbook of Techniques for Formative Evalution".
Inggris:
Routledge Falmer,
2002.
Buku.