Important Sites Egyptian Knowledge Bank- EKB Egyptian Public Relations Association Al Arabia Public Relations Agency Author Name: Dr. Badr Al-Din Ali Hamad Muhammad Country: Sudan University: Jazan University Department: Press & Media Dep. Job: Assistant Professor of Press Email: badereldin1970@gmail.com Phone: 00966551746159 Author Page: Published Articles: Using Social Networking Sites to Teach Secondary School in Sudan: A field Study on State of Khartoum , Vol.8 , Twenty Eighth Issue PP:10 Download