Orey, Maureen
Communication skills training
ASTD Press, 2004
 eBooks
Orey, Maureen
Communication skills training
ATD Press, 2015
 Buku Teks SO
Sullivan, Richard L.
The transfer of skills training
ASTD Press, 1998
 eBooks
Downs, Lisa J.
Listening skills training
American Society for Training & Development, 2008
 eBooks
Atwood, Christee Gabour
Manager skills training
American Society for Training & Development, 2008
 eBooks