Pratt, John, author
The Federation Press, 1997
Buku Teks
Barnet, Richard J., author
Simon and Schuster, 1981
Buku Teks
Sampson, Anthony
Coronet Books, 1982
Buku Teks
Michel-Kerjan, Erwann, author
Public Affairs, 2010
Buku Teks
Seredynska, Iwona
Springer, 2012
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