Tutik Rachmawati
Faculty of Social and Politics Sciences Universitas Katolik Parahyangan, 2015
Artikel Jurnal
Wilopo
Faculty of Administrative Science Universitas Brawijaya, 2015
Artikel Jurnal
Deutsch, Karl Wolfgang, 1912-1992
Houghton Mifflin, 1970
Buku Teks
Halpern, Diane F.
McGraw-Hill, 1963
Buku Teks SO
Robinson, Donald L.
Westview Press, 1989
Buku Teks SO