Ward, Robert E.
Japan's Political System
Prentice-Hall, 1967
 Buku Teks
Ward, Robert E.
Japan's political system
Prentice-Hall, 1978
 Buku Teks
Reischauer, Edwin O.
Japan, past and present
G. Duckworth, 1964
 Buku Teks
Political development in modern Japan
edited by Robert E. Ward
Princeton University Press, 1968
 Buku Teks
Quigley, Harold S.
The new Japan government and politics
University of Minnesota Press, 1956
 Buku Teks