Petrides, George A., author
Houghton Mifflin, 1988
Buku Teks
Peterson, Lee Allen, author
Houghton Miffiln, 1977
Buku Teks
Hunt, William Dudley
Harper & Row, 1984
Buku Teks
Lipper, Arthur, III, author
Dow Jones Irwin, 1984
Buku Teks
Compton, Robert R., author
Wiley Eastern Private, 1968
Buku Teks