War, torture and terrorism : ethics and war in the 21st century
Dvid Rodin, editor
Blackwell Publishing, 2007
 Buku Teks SO
Steil, Benn
The Marshall Plan : dawn of the Cold War
Simon &​ Schuster, 2018
 Buku Teks
Hirst, Paul
War and power in the 21st century: perang dan kekuatan di abad ke-21: konflik militer, negara dan sistem internasional
Murai Kencana, 2004
 Buku Teks
Town planning into the 21st century
edited by Andrew Blowers, Bob Evans
Routledge, 1997
 Buku Teks SO
The 21st century world atlas
Trident Press, [Date of publication not identified]
 Buku Referensi