The National Institute for Defense Studies, 2010
Buku Teks
Acharya, Amitav, author
Routledge, 2014
Buku Teks
Hatch, Mary Jo
Oxford University Press, 1997
Buku Teks
French, Wendell L., author
Prentice-Hall International, 1990
Buku Teks
Caplo, Theodore, author
Harcourt, Brace & World, 1964
Buku Teks