Fisher, C.M., author
Routledge , 1998
Buku Teks
Flynn, Norman, author
Harvester, 1990
Buku Teks
Dooren, Wouter van, author
Routledge, 2015
Buku Teks
editors, Ronald J. Burke, Cary L. Cooper
Edward Elgar, 2012
Buku Teks
Baker, David, author
Chandos Publishing, 2007
Buku Teks