edited by Charles Webel and Jorgen Johansen
Routledge, 2012
Buku Teks
Jeong, How-Won, author
Ashgate, 2000
Buku Teks
Christie, Daniel J., author
Prentice-Hall, 2001
Buku Teks
Wallensteen, Peter, author
Sage, 2002
Buku Teks
editor-in-chief, Lester Kurtz
Academic Press, 1999
Buku Referensi