Berkley, George E., author
McGraw-Hill, 2009
Buku Teks
Rainey, Hal G., author
John Wiley & Sons, 2003
Buku Teks
edited by Maurice E. O'Donnell
Houghton Mifflin, 1966
Buku Teks
Bozeman, Barry, author
St. Martin's Press, 1979
Buku Teks
by Phillip J. Cooper [and others]
Harcourt Brace, 1998
Buku Teks