Duetsch, Karl W.
Germany rejoins the powers Mass opinion, interest groups, and elites in contemporary German foreign policy / Karl W. Duetsch
Stanford University Press, 1959
 Buku Teks
García-Villegas, Mauricio
The Powers of Law: A Comparative Analysis of Sociopolitical Legal Studies
Cambridge University Press, 2018
 eBooks
Sonquist, John A.
Survey and opinion research: procedures for processing and analysis
Prentice-Hall, 1977
 Buku Teks
Myung, Hyun Cho
Korea and the major powers : an analysis of power structures in East Asia
Seoul Computer Press, 1989
 Buku Teks
Schwebel, Stephen M.
The secretary-General of the United Nations : his political powers and practice / Stephen M. Schwebel
Harvard University Press, 1952
 Buku Teks