edited by Jon Pierre
Edward Elgar, 1994
Buku Teks
edited by Nimrod Raphaeli
Allyn and Bacon, 1967
Buku Teks
edited by Martin Painter and B. Guy Peters
Palgrave Macmillan, 2010
Buku Teks
Sodaro, Michael J.
McGraw-Hill, Higher Education, 2008
Buku Teks
Marcel Dekker, Inc, 1990
Buku Teks