1. Impact of social media on adolescent behaviorial health;Carroll;Oakland, CA: California Adolescent Health Collaborative. Accessed at www. Californiahealth.org/up/.com on August,2011
2. Social relationship and health;Cohen;American psychologist,2004
3. Media debates: Issues in mass communication;Dennis,1991
4. Characteristics of social networks;Dube;Accessed at social networking.lovetoknow.com on August,2007
5. Human sociality: The inherent socialability of Homo sapiens;Fiske;Accessed at www. scinet.ucla.edu/./relmodov.htm on August,2010