Halvorson, George C., author
John Wiley & Sons, 2007
Buku Teks
North, Douglass C., author
Princeton University Press, 2005
Buku Teks
Solidaridad Publishing House, 1969
Buku Teks
Heru Nurasa, author
Department of Public Administration Sciences, Faculty of Social and Political Sciences,Universitas Padjadjaran, 2012
Artikel Jurnal
Selo Soemardjan, author
Sebelas Maret University Press in cooperation with Yayasan Ilmu-Ilmu Social, Jakarta, and East-West Center, Honolulu, 1993
Buku Teks