Ewen, David
Prentice Hall, 1968
Buku Referensi
Kostka, Stefan
McGraw-Hill , 2000
Buku Teks SO
Fenton, Terry
Edmonton Art Gallery, 1978
Buku Teks SO
Woodham, Jonatham M.
Oxford University Press, 1997
Buku Teks SO
Chant, Christopher
London: Chancellor Press, 1999,
Buku Referensi