edited by Jon Pierre
Edward Elgar, 1994
Buku Teks
edited by Nimrod Raphaeli
Allyn and Bacon, 1967
Buku Teks
Heady, Ferrel
Prentice-Hall, 1966
Buku Teks
Heady, Ferrel
Marcel Dekker, 1991
Buku Teks
edited by Martin Painter and B. Guy Peters
Palgrave Macmillan, 2010
Buku Teks