共 3 条
[1]
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[2]
"Mass Media Flowand Differential Growth in Knowl-edge". P.J.Tichenor,G.A.Donohue,and C.N.Olien. The Public Opinion Quarterly . 1970
[3]
"The Mass Media and Political Informa-tion in Quito,Ecuador". Mcleod,Jack M,Ramona R.Rush,,Karl H.Friederich. The Public Opinion Quarter-ly . 1968-1969