@book{480617,
	author = {Hansen, Anders, and Sage eBooks},
	title = {Mass communication research methods},
	publisher = {SAGE,},
	year = {2009.},
	series = {SAGE benchmarks in social research methods},
	address = {London :},
	url = {http://ezproxy.alfaisal.edu/login?url=http://sk.sagepub.com/navigator/mass-communication-research-methods}
}