Gaya APA
John, C, G.
(2004).
A hanbook of tecniques for formative evalution
.
Inggris:
Routledge Falmer.
Gaya MLA
John, COWAN.Judith, George.
"A hanbook of tecniques for formative evalution".
Inggris:
Routledge Falmer,
2004.
Buku.