Bales, D. J. (2007). Beginning PL/SQL: From novice to professional. Apress.
Chicago-čujuhus (17. p.)Bales, Donald J. Beginning PL/SQL: From Novice to Professional. New Delhi: Apress, 2007.
MLA-čujuhus (9. p.)Bales, Donald J. Beginning PL/SQL: From Novice to Professional. Apress, 2007.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.