Beck, Leland L., author
Addison-Wesley, 1985
Buku Teks
Coffron, James W., author
Sybex, 1983
Buku Teks
Tokheim, Roger L., author
McGraw-Hill, 1990
Buku Teks
Tokheim, Roger L., author
McGraw-Hill, 1983
Buku Teks
Clements, Alan, author
McGraw-Hill, 1991
Buku Referensi