Pond, Robert J.
Maxwell Macmillan, 1994
Buku Teks
Grant, Eugene Lodewick
McGraw-Hill, 1988
Buku Teks
Cowden, Dudley J.
Prentice-Hall, 1957
Buku Teks
Grant, Eugene Lodewick
McGraw-Hill , 1964
Buku Teks
Grant, Eugene Lodewick
McGraw-Hill Kogakusha, [date of publication not identified]
Buku Teks