Banks, Ferdinad E.
Plenum Press , 1976
Buku Teks
edited by D.W. Pearce with the assistance of J. Rose
Macmillan, 1975
Buku Teks
Pearce, David William, 1941-
Harvester Wheatsheaf, 1990
Buku Teks
Barnett, Harold J.
John Hopkins Press, 1963
Buku Teks
Hackett, Steven C.
M.E. Sharpe, 2001
Buku Teks