Weber, Max, 1864-1920, author
Routledge Classics , 2001
Buku Teks
Pigou, A.C. (Arthur Cecil), author
Macmillan, 1958
Buku Teks
Cammack, Paul Anthony, author
Leicester University Press, 1997
Buku Teks
Schumpeter, Joseph A.
Harper , 1950
Buku Teks
edited by Glenn Morgan, Richard Whitley
Oxford University Press, 2012
Buku Teks