University of Tokyo Press, 1970
Buku Teks
Toynbee, Arnold J., author
Oxford University Press, 2007
Buku Teks
Vogt, William
New York, N.Y. WilliamSloane 1948,
Buku Teks
Annan, Kofi A., author
United Nations, 1998
Buku Teks
Abdurrahman Wahid, 1940 - 2009, author
Gramedia Pustaka Utama, 2010; 2011
Buku Teks