by Mohamed El Desouki – محمد الدسوقى [email protected] Tel :00966 553450836 جامعة سلمان بن عبد العزيز – السعودية – الخرج Database Normalization – Fourth Normal Form in Arabic Text Book: Fundamentals of Database Systems, 5th Edition, by Elmasri/Navathe, published by Addison-W