de Vries, Michiel S.., author
Palgrave Macmillan , 2010
Buku Teks
edited by Robert Gilpin and Christopher Wright
Columbia University Press , 1965
Buku Teks
Dorey, Peter, author
SAGE, 2014
Buku Teks
editors, Marlon A. Wui, MA. Glenda S. Lopez
Third World Studies Center, 1997
Buku Teks
Schubert, Glendon, author
Scott, Foresman, 1965
Buku Teks