Stierlin, Henri, author
Thames & Hudson, 2002
Buku Teks
Yeomans, Richard, author
Garnet, 2006
Buku Teks
Yeomans, John
Longmans, 1968
Buku Teks
Richter, Klaus, author
Prestel, 2001
Buku Teks
Rice, David Talbot, author
Thames and Hudson, 1996
Buku Referensi