Caves, Richard E., author
Harper Collins College Publishers, 1996
Buku Teks
Lenway, Stefanie Ann
Pitman, 1985
Buku Teks
Brown, William Adams, author
Washington, D.C., Brookings Institution
Buku Teks
Baldwin, Robert E., author
Harvester/Wheatsheaf, 1988
Buku Teks
Riko Nugraha, author
Fakultas Hukum Universitas Indonesia, 2012
UI - Tesis Open