James P Sterba
Routledge, 2001
Buku Teks
Benton, Ted, author
Palgrave Macmillan, 2011
Buku Teks
Benton, Ted, author
Design , 2001
Buku Teks
Cohan, Morris R.
Transactio Books, 1982
Buku Teks
Rommen, Heinrich A.
Liberty Fund Indianapolis, 1998
Buku Teks