Mudd, Stuart
Indiana University Press , 1964
Buku Teks
Lamb, George P.
Little, Brown, 1971
Buku Teks
Henley, David, author
KITLV Press , 2005
Buku Teks
Anderson, Francis M.
Ransdell Incorporated Publishers, 1939
Buku Teks
Petersen, William, author
Macmillan, 1961
Buku Teks