by Catherine Bauer [and others]; edited by Coleman Woodbury
The University of Chicago Press, 1953
Buku Teks SO
Amin, Ash
Polity Press, 2010
Buku Teks SO
Forman, Richard T. T.
Cambridge University Press, 2014
Buku Teks
Stevenson, Deborah
Open University Press, 2003
Buku Teks SO
Mercer, Charles
Penguin Books, 1975
Buku Teks SO