Barnes, Gina L., author
Curzon Press , 2001
Buku Teks
Cambridge University Press, 2012
eBooks
edited Shirin M. Rai, Geraldine Lievesley
Taylor and Francis, 1996
Buku Teks
Mytum, Harold
Springer, 2012
eBooks
Claycomb, James, author
Jones and Bartlett Publishers, 2011
Buku Teks