Ritter, Scott
Iraq confidential : the untold story of America's intelligent conspiracy
IB Tauris, 2005
Buku Teks
Earnest, Peter
Business confidential: lessons for corporate success from inside the CIA
American Management Association, 2011
eBooks
Arul Khun (Michael Firewall)
Conspiracy agent
Momentum , 2007
Buku Teks
Lee, Grossman
The change agent
Amacom, 1974
Buku Teks
Tudor, Daniel, 1982-
North Korea confidential : private markets, fashion trends, prison camps, dissenters and defectors
Tuttle Publishing, 2015
Buku Teks