Deming, Vasudha Kathleen, author
McGraw-Hill, 2004
Buku Teks
Tracy, Brian, author
American Management Association, 2010
eBooks
Sindell, Milo, author
[American Society for Training & Development Press, American Society for Training & Development Press], 2001
eBooks
Allen, Scott J., author
American Management Association, 2011
Buku Teks
edited by Claudia Peus, Susanne Braun, Birgit Schyns
Emerald, 2016
eBooks