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Buku Teks
Apter, David E., author
Jakarta LP3ES 1996,
Buku Teks
New York : American Political Science Association
Majalah, Jurnal, Buletin
New York : Academy of Political Science
Majalah, Jurnal, Buletin
Kneen, Peter, author
University of New York Press, 1984
Buku Teks