Drury, Allen, author
Doubleday, 1962
Buku Teks
Anderson, Maxwell, author
Harcout, Brace, 1926
Buku Teks
Allen, Frederick Lewis, author
Harper & Row, 1952
Buku Teks
Noble, David W.
Burgess Publishing Company, 1981
Buku Teks
Lauer, Robert H., author
McGraw-Hill, 2014
Buku Teks