Falletta, Salvatore V., author
[American Society for Training & Development;, ], 2001
eBooks
edited by David A. Turner
Addison-Wesley, 1990
Buku Teks
Beach, David P., author
Prentice-Hall, 1992
Buku Referensi
Girden, Ellen R., author
Sage, 2001
Buku Teks
edited by Tracey Epps, Michael J. Trebilcock
UK Edward Elgar, 2013
Buku Teks