Singer, Peter W., and Emerson Brooking. "The Future of War Will Be ?Liked?." Foreign Policy (2018).

Singer, Peter W.. Can?t Win With ?Em, Can?t Go to War Without ?Em: Private Military Contractors and Counterinsurgency In Brookings Institution Foreign Policy Paper Series., 2007.

Paden, John N., and Peter W. Singer. "America Slams the Door (On Its Foot)." Foreign Affairs 83, no. 3 (2003): 8-14.

Singer, Peter W.. Corporate Warriors: The Rise of the Privatized Military Industry . Ithaca, NY: Cornell University Press, 2003.