Seoung-Yong Hong, Jon M. Van Dyke, editor
Martinus Nijhoff , 2009
Buku Teks
ILO , 1973
Buku Teks
Suprapto Wijoyo, author
Airlangga University Press, 1999
Buku Teks
Goldman, Laurence, author
Tavistock, 1983
Buku Teks
Park, William W., author
Oxford University Press, 2012
Buku Teks