Lawson, Karen
Leadership development basics
American Society for Training & Development, 2009
 eBooks
Russell, Lou
Leadership training
ATD Press, 2015
 Buku Teks
Stroup, Jim
Create a management development program: management development
American Management Association, 2008
 eBooks
Bambang Widyastomo
Membangun Model Kompetensi untuk Karyawan Sales di PT ABC
Fakultas Psikologi Universitas Indonesia, 2002
 UI - Tesis Membership
The ASTD management development handbook: innovation for today?s manager
Lisa Haneberg, editor
American Society for Training & Development, 2012
 eBooks