Francis, Jack Clark, author
McGraw-Hill, 1988
Buku Teks
Francis, Jack Clark, author
McGraw-Hill, 1980
Buku Teks
Fischer, Donald E., author
Prentice-Hall, 1991
Buku Teks
Francis, Jack Clark, author
McGraw-Hill, 1991
Buku Teks
Hayes, Douglas A., author
Macmillan, 1956
Buku Teks