Beighley, L. (2007). Head First SQL. Shroff Publishing.
Lua i Stíl Chicago (17ú heag.)Beighley, Lynn. Head First SQL. Mumbai: Shroff Publishing, 2007.
Lua MLA (9ú heag.)Beighley, Lynn. Head First SQL. Shroff Publishing, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.