Kirkpatrick, Donald L., author
Berrett-Koehler, 2005
Buku Teks
Kirkpatrick, Donald L., author
Berrett-Koehler, 2006
Buku Teks
Tanquist, Stu, author
[American Society for Training & Development Press, American Society for Training & Development Press], 2000
eBooks
Patricia Pulliam Phillips, editor
American Society for Training & Development, 2010
eBooks
Libraries Unlimited, 2000
Buku Teks