Mckinlay, Brian
Drummond, 1979
Buku Teks SO
Siedman, Joel
Labor Relation Cornel University, 1958
Buku Teks
Taff, Philip
Cornell University Press, 1958
Buku Teks
Litwack, Leon
Prentice-Hall, 1962
Buku Teks SO
Silaban, Rekson
Friedrich Ebert Stiftng, 2009
Buku Teks SO