1. Ijaz O. , Competitive Trends, Marketing, Mobile Companies, Mobile Trends, Mobilink, Pakistan, Telenor, Ufone, Warid, Zong’, 2008.
2. Clements I. and Buczkiewicz M. , Approaches to Peer-led Health Education: A guide for youth workers. London: Health Education Authority, 1993.
3. A carrier’s perspective on creating a mobile multimedia service;Balaji;Communications of the ACM,2005
4. Epstein J. , editor, Youth culture: Identity in a postmodern world. Blackwell Publishing, 1998.
5. Attitude towards advertising among students at private higher learning institutions in Selangor;Munusamy;Unitar E-Journal,2007