Atwood, Christee Gabour
Ultimate basic business skills : training an effective workforce
ASTD Press, 2009
 Buku Teks
Atwood, Christee Gabour
Ultimate basic business skills: training an effective workforce
American Society for Training & Development, 2009
 eBooks
Orey, Maureen
Communication skills training
ATD Press, 2015
 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