Important Sites Egyptian Knowledge Bank- EKB Egyptian Public Relations Association Al Arabia Public Relations Agency Author Name: Assistant Professor Ahmed Sami AbdulWahab AlAydi Country: Egypt University: Al-Azhar University Department: Public Relations Department Job: Assistant Professor of PR & Advertising Email: samyelidy@gmail.com Phone: 00201005088864 Author Page: https://scholar.google.com/citations?user=0024YJoAAAAJ&hl=ar Published Articles: Saudi youth’s usage of social networking sites and its relationship to sustainable development issues , Vol.7 , Twenty Fifth Issue PP:16 Download