Abiteboul, Serge, author
Addison-Wesley, 1995
Buku Teks
Rothwell, David M., author
McGraw-Hill, 1993
Buku Teks
Liberty, Jesse, author
O`Reilly, 2003
Buku Teks
Gobran, Alfonse, author
Prindle, Weber & Schmidt, 1975
Buku Teks
Kuebler, Roy R., author
John Wiley & Sons, 1976
Buku Teks