Sugrue, Thomas J.
The Origins of the urban crisis : race and inequality in postwar Detroit
Prenciton University Press, 2005
 Buku Teks SO
Walters, Vivienne J.
Class inequality and health care : the origins and impact of the national health service
Croom Helm, 1980
 Buku Teks
Urban inequality evidence from four cities
edited by Alice O'Connor, Chris Tilly and Lawrence D. Bobo
Russel Sage Foundations, 2001
 Buku Teks SO
Nash, Gary B.
The Urban crucible: Social change, political consciousness, and the origins of the American Revolution
Harvard University Press, 1979
 Buku Teks SO
The regional distribution of skill premia in urban China : Implications for growth and inequality
 Artikel Jurnal