Furstenberg, Friedrich, author
Leviathan House, 1974
Buku Teks
Kodansha International, 1972
Buku Teks
The International Society for Education Information, Inc., 1983
Buku Teks
Clark, Rodney, author
Yale University Press, 1979
Buku Teks
Ienaga, Saburo
Weatherhill, 1979
Buku Teks