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Buku Teks
Boulding, Elise, author
Dialogue Path Press, 2010
Buku Teks
Diez-Hochleitner, Ricardo, author
I.B. Tauris, 2008
Buku Teks
Toynbee, Arnold J., author
Oxford University Press , 1976, 1989
Buku Teks
Ikeda, Daisaku, 1928-, author
Weatherhill, 2002
Buku Teks