Atwood, Christee Gabour
Manager skills training / Christee Gabour Atwood
ASTD Press, 2008
 Buku Teks
Bennett, Willard E.
Manager selection, education and training
McGraw-Hill, 1959
 Buku Teks
Scott, John
Effective management skills : what is a manager?
Spere British Institute of Management, 1984
 Buku Teks
Orey, Maureen
Communication skills training
American Society for Training and Development Press;, 2004
 eBooks
Downs, Lisa J.
Negotiation skills training
American Society for Training & Development, 2009
 eBooks