5[10][12]Dwight L.Teeter,Don R.Le Duc(1992),Law of Mass Communication:Freedom and Control of Print and Broadcast Media,The Foundation Press,lnc.PP.553-554
6[13]John D.Zelezny (2004),Case in Communications Law:Liberties,Restraints and the Modern Media (Fourth edition),Peking University Press,PP.155
9Anthony L Fargo.The Journalist‘s Privelege For Nonconfidential Information in States Without Shield LawsCommL& Policy,2002.
10Alexander Laurence.looking out for the watchdogs:A legislative proposal limiting the news gathering privilege to journalists sources and informationYale law and policy review,2002.
