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Dyfyniad Arddull ChicagoGREENBERG, Nancy. Course Manual Oracle Database 10g: SQL Fundamentals I Volume III Student Guide (Additional Practices). Jobi Varghese, 2004.
Dyfyniad MLAGREENBERG, Nancy. Course Manual Oracle Database 10g: SQL Fundamentals I Volume III Student Guide (Additional Practices). Jobi Varghese, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.