Teichert, Pedro C.M.
Bureau of Business Research Mississippi University , 1959
Buku Teks
Hirschman, Albert O.
Twentieth Century Fund, 1963
Buku Teks
Molineu, Harold
Westview Press, 1990
Buku Teks
Molineu, Harold
Westerview Press, 1990
Buku Teks
edited by James Petras
John Wiley & Sons, 1973
Buku Teks