Eidelberg, Paul, author
Free Press, 1968
Buku Teks
Nowak, John E., author
Thomson/West, 2010
Buku Teks
Wright, Benjamin F., author
Phoenik Books, 1967
Buku Teks
Barron, Jerome A., author
West, 2009
Buku Teks
Smith, Glenn C., author
John Wiley & Sons, 2012
Buku Teks