Gaya APA
Spring, J.
(2005).
The american school : 1642-2004
(
sixth edition)
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The McGraw-Hill.New York.
Gaya MLA
Spring, Joel.
"The american school : 1642-2004".
sixth edition
:
The McGraw-Hill.New York,
2005.
Skripsi, Tesis, Disertasi.