Shah, N. Database Systems Using Oracle: A Simplified Guide to SQL and PL/SQL. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Shah, Nilesh. Database Systems Using Oracle: A Simplified Guide to SQL and PL/SQL. Prentice Hall.
Lua MLA (8ú heag.)Shah, Nilesh. Database Systems Using Oracle: A Simplified Guide to SQL and PL/SQL. Prentice Hall.
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