Rujukan Model_hubungan

  1. ↑ Data Integration Glossary, U.S. Department of Trransportation, August 2001.
  2. ↑ "Derivability, Redundancy, and Consistency of Relations Stored in Large Data Banks", E.F. Codd, IBM Research Report, 1969
  3. ↑ "A Relational Model of Data for Large Shared Data Banks", in Communications of the ACM, 1970.
  4. ↑ White, Colin. In the Beginning: An RDBMS History. Teradata Magazine Online. September 2004 edition. URL: http://www.teradata.com/t/page/127057
  5. ↑ E. F. Codd, The Relational Model for Database Management, Addison-Wesley Publishing Company, 1990, ISBN 0-201-14192-2