Weinreb, Lloyd L., 1936-, author
Cambridge University Press, 2016
Buku Teks
Ashley, Kevin D.
Mass. MIT Press , 1990
Buku Teks
Kirchheimer, Otto
Princeton University press, 1961
Buku Teks
Ward, Francine, author
American Society for Training & Development, 2007
eBooks
edited by Elizabeth M. Moys
Westview Press, 1976
Buku Teks