Grant, Adam, author
Noura, 2017
Buku Teks
Catmull, Edwin, author
Random House Canada, 2014
Buku Teks
Bessant, John, author
Emerald, 2018
eBooks
Lewis, Clive, author
American Society for Training & Development, 2008
eBooks
Viki, Tendayi, author
Management Impact, 2017
Buku Teks