Frieden, Jeffry A., author
Routledge, 1997
Buku Teks
Taylor, John
Warner Books, 1989
Buku Teks
Perry, Michael J
Oxford University Press, 1991
Buku Teks
Love, Peter
Melbourne University Press, 1984
Buku Teks
Shinya, Hiromi, author
Qanita, 2013
Buku Teks