Stacey, Jackie
Routledge, 1997
Buku Teks
Bowler, Shaun
The University of Michigan Press, 200
Buku Teks
Marcus, Edward, author
Bookman Associates, 1960
Buku Teks
Denecke, Kerstin
[Springer, ], 2012
eBooks
Davis, Paul, author
Cambridge University Press, 1994
Buku Teks