Sands, Philippe, author
Cambridge University Press, 2003
eBooks
Middleton, Neil, author
Pluto Press, 1993
Buku Teks
Stewart, Richard B.
The Bobbs-Merrill Company,Inc., 1978
Buku Teks
Revesz, Richard L.
Oxford University Press , 1997
Buku Teks
Jamie Benidickson ... [et al.]., editor
Edward Elgar, 2011
Buku Teks