Tournikiotis, Panayotis
MIT Press, 1999
Buku Teks SO
edited by Roger E. Backhouse, Philippe Fontaine
Cambrigde University Press, 2014
Buku Teks SO
Adam Budd, editor
Routledge , 2009
Buku Teks SO
Jones, Rodney W.
Westview Press, 1984
Buku Teks
edited by Michael Bentley
London Routledge 1997,
Buku Teks