Ferriss, Hugh, author
Dover Publications, 2005
Buku Teks
Broadbent, Geoffrey, author
John Wiley & Sons, 1981
Buku Teks
University of Chicago Press, 1993
Buku Teks
Andrews, Wayne
Macmillan, 1978
Buku Teks
Carter, Brian
Thames & Hudson, 2002
Buku Teks