Schudson, Michael
Routledge, 1993
Buku Teks
Pickles, Dorothy Maud
ssued under the auspices of the Royal Institute of International Affairs (by) Oxford U.P, 1966
Buku Teks
Chandra, Jagdish, author
eBooks
Chandra, Jagdish, author
Society for Industrial and Applied Mathematics, 2005
eBooks
Little, Brown and Co., 1959
Buku Teks