Chant, Christopher
London: Chancellor Press, 1999,
Buku Referensi
Dvid Rodin, editor
Blackwell Publishing, 2007
Buku Teks
Toffler, Alvin
Warner Books, 1994
Buku Teks
Chant, Christophe
Chancelor Press, 1999
Buku Referensi
Chant, Christopher
Chancellor Press , 1999
Buku Referensi