edited by Swasti Mitter and Sheila Rowbotham
Routledge, 1995
Buku Teks
Burnell, Peter J.
Westview Press, 1986
Buku Teks
edited by T.E. Smith
George Allen and Unwin, 1973
Buku Teks
Cammack, Paul Anthony, author
Macmillan, 1993
Buku Teks
edited by Ray Bromley, Chris Gerry
John Wiley & Sons, 1979
Buku Teks