Lawrence Erlbaum Associates, 1983
Buku Teks
Leitmann, Josef, author
McGraw-Hill, 1999
Buku Teks
Hodell, Chuck, author
American Society for Training & Development, 2006
eBooks
Hodell, Chuck, author
American Society for Training & Development, 2010
eBooks
Hodell, Chuck, author
American Society for Training & Development, 2011
eBooks