Watson, Adam
The Limits of independence : relations between states in the modern world
Routledge , 1997
 Buku Teks
Paridah Abd. Samad
The new age of the kings : modern monarchies in Malaysia and the world
Partisan Publication, 2014
 Buku Teks
Hammond's New international world atlas : the modern, medieval and ancoent world
C.S. Hammond & Company
C.S. Hammond & Company, 1958
 Buku Teks
New nations in a divided world; the international relations of the Afro-Asian states
edited by Kurt London
Published for the Institute for Sino-Soviet Studies, 1964
 Buku Teks
Kumar, Krishan
From post-industrial to post modern society: new theories of the contemporary world
Blackwell, 1996
 Buku Teks