Battell, Chris, author
American Society for Training & Development, 2006
eBooks
Battell, Chris, author
eBooks
Scott, John, author
Spere British Institute of Management, 1984
Buku Teks
Foster, John, author
Crest Publishing House, 2003
Buku Teks
Atwood, Christee Gabour, author
American Society for Training & Development, 2009
eBooks