Berle, Adolf A., Jr., author
Harcourt, Brace, 1959
Buku Teks
Beck, Ulrich, author
Malden, MA :Polity Press, 2005
Buku Teks
Shils, Edward, author
Mouton, 1968, 1962
Buku Teks
Frieden, Jeffry A., author
Thomson Wadsworth, 2000
Buku Teks
Frieden, Jeffry A., author
Routledge, 1997
Buku Teks