Orey, Maureen
Communication skills training
ATD Press, 2015
 Buku Teks
Downs, Lisa J.
Negotiation skills training
American Society for Training & Development, 2009
 eBooks
Sullivan, Richard L.
The transfer of skills training
American Society for Training and Development Press, 1998
 eBooks
McCain, Donald V.
Facilitation skills training
American Society for Training & Development, 2007
 eBooks
Downs, Lisa J.
Listening skills training
American Society for Training & Development, 2008
 eBooks