Tài liệu tham khảo

WikiPedia: Dạng_chuẩn_3 http://www.cs.jcu.edu.au/Subjects/cp1500/1998/Lect... http://databases.about.com/od/specificproducts/a/n... http://www.aw-bc.com/catalog/academic/product/0,11... http://www.dbdebunk.com http://www.marcrettig.com/poster/ http://support.microsoft.com/kb/283878 http://dev.mysql.com/tech-resources/articles/intro... http://phlonx.com/resources/nf3/ http://www.troubleshooters.com/littstip/ltnorm.htm... http://www.utexas.edu/its/windows/database/datamod...