Lindberg, Roy A., author
Allyn and Bacon, 1990
Buku Teks
Edgar, Carroll
Addison-Wesley Publishing, 1965
Buku Teks
Black, J. Temple, author
John Wiley & Sons, 2013
Buku Teks
Thompson, Rob, author
Thames & Hudson, 2016
Buku Teks
Black, Bruce J., author
Elsevier, 2004
Buku Teks