edited by Carl Gans
University of Chicago Press, 1992
Buku Teks
Telford, Sam R., author
CRC Press, 2009
Buku Referensi
Erwan Baharudin, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2014
UI - Tesis (Membership)
Carr, Archie, author
Time Incorporated, 1970
Buku Teks
Blum, Mark, author
Chronicle Books, 1999
Buku Referensi