edited by Marcel Boyer and Richard E. Kihlstrom
North-Holland Publishing, 1984
Buku Teks
Palm, William J., author
John Wiley & Sons, 1983
Buku Teks
Telser, Lester G., author
University of Chicago Press, 1972
Buku Teks
Shearer, J. Lowen, author
Prentice-Hall, 1997
Buku Teks
Rideout, Vincent C.
Prentice Hall International, 1991
Buku Teks