Oxford Univertity Press, 2004
Buku Teks
Fisher, Ronald C.
Syracuse University Press, 1996
Buku Teks
Wallensteen, Peter
SAGE, 2015
Buku Teks
Tacsan, Joaquin
Martinus Nijhoff, 1992
Buku Teks
Morton Deutsch, Peter T. Coleman
Jossey-Bass Publishers, 2000
Buku Teks