APA Style
Spencer, D. (2004).
language assesment principles and classroom practice .
Surabaya:
Yayasan Penerbitan Fakultas Psikologi UGM.
MLA Style
Spencer, DH..
"language assesment principles and classroom practice".
Surabaya:
Yayasan Penerbitan Fakultas Psikologi UGM,
2004.
Buku PGSD.