Rover, Cees de, author
RajaGrafindo Persada, 2000.
Buku Teks
edited by Alice H. Henkin
Aspen Institute for Humanistic Studies, 1979
Buku Teks
Shelton, Dinah L., author
Edward Elgar, cop, 2014
Buku Teks
Columbia University Press, 1981
Buku Teks
Baehr, P. R. (Peter R.), author
Yayasan Obor Indonesia, 1998
Buku Teks