Duchacek, Ivo D., author
Santa Barbara, 1973
Buku Teks
edited by Julie Peters and Andrea Wolper
Rouledge, 1995
Buku Teks
edited by Allan Gotlieb
Canadian Institute of International Affairs, 1970
Buku Teks
Jesss Ballesteros
Springer, 2012
eBooks
Joseph, Sarah, author
Oxford University Press, 2014
Buku Teks