Cooke, Robert
Wiley-blackwell, 2009
Buku Teks
Anderson, Norman A.
Chilton Book Company, 1980
Buku Teks
Anderson, Norman A.
Chilton Book Company, 1972
Buku Teks
Eliot, George
Harper & Row, [Date of publication not identified]
Buku Teks
Wilson, Charles E.
Harper & Row , 1989
Buku Teks