Carter, Gwendalen M
Harcourt, Brace ,
Buku Teks
Edie, Carlene J., author
Wadsworth/Thomson Learning, 2003
Buku Teks
Bayart, Jean-Francois, author
Longman, 1993
Buku Teks
Maitland-Jones, J.F., author
W.W. Norton, 1974
Buku Teks
Hartmann, Heinz
N.J., Industrial Relations Section, Dept. of Economics, Princeton University, 1962
Buku Teks