Huizinga, Johan
Doubleday & Company, Inc., 1956
Buku Teks SO
Brandt, Thomas
Goasia Verlag, 2001
Buku Referensi
Francastel, Pierre
Distributed by MIT Press, 2000.
Buku Teks SO
Overy, Paul
Thames and Hudson, 2000
Buku Teks SO
Eliot, George
Harper & Row, [Date of publication not identified]
Buku Teks SO