Gallup, George
A Guide To Public Opinion Polls
Princeton University press, 1948
Buku Teks
Albig, WIlliam
Public opinion
McGraw-Hill, 1939
Buku Teks
Lane, Robert E., author
Public opinion
Prentice-Hall, 1964
Buku Teks
Albig, WIlliam
Public opinion
McGraw-Hill, 1939
Buku Teks
Effects of information provision on responses to opinion polls on the Korea - U.S. free trade agreement
Artikel Jurnal
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