Drucker, Peter F. (Peter Ferdinand), 1909-2005, author
Times Books International, 1985
Buku Teks
Topchik, Gary S., author
American Management Association, 2007
eBooks
Terry, George Robert, author
Learning Systems, 1981
Buku Teks
Scott, John, author
Spere British Institute of Management, 1984
Buku Teks
Kevin Oakes and Pat Galagan, editors
American Society for Training & Development, 2011
eBooks