Mark Sheehan

Designing Portals: Opportunities and Challenges

Ali Jafari, Mark Sheehan, 2003 .

Public relations practitioners and social media: themes in a global context

Karen E Sutherland, Mark Sheehan, Prue Robson, 2012 .

Online survey results

Mark Sheehan, Mark Sheehan, M. Sheehan, 2003 .