Bogdan, Michael
Comparative law
Kluwer Norstedts Juridik Tano, 1994
 Buku Teks
Taylor, Benjamin J.
Cases in labor relations law
Prentice-Hall, 1987
 Buku Teks SO
Jackson, Grdon E.
Labor and employment law book
Prentice-Hall, 1993
 Buku Referensi
Jansen, Ernst P.
Labor law in the Netherlands
Kluwer, 1994
 Buku Teks
Gould, William B., IV
A primer on American labor law
MIT Press, 1982
 Buku Teks SO