Levy, Sidney M.
Elsevier , 2010
Buku Teks
Thorpe, Brian, author
[Gower, ], 2005
eBooks
edited by Mike Murray, Andrew Dainty
Taylor and Francis, 2009
Buku Teks
edited by George Clement Bond, Angela Gilliam
Routledge, 1994
Buku Teks
Barger, Christopher, author
McGraw-Hill, 2012
Buku Teks