Savitch, Walter J., author
The Benjamin/Cummings Publishing, 1984
Buku Teks
Deitel, Harvey M., 1945-, author
Prentice-Hall, 1977
Buku Teks
Hellwig, Jessica
Columbia University Press, 1969
Buku Teks
McCalla, Thomas Richard, author
John Wiley & Sons, 1967
Buku Teks
Leventhal, Lance A., author
Prentice-Hall, 1987
Buku Teks