Donatelle, Rebecca J., author
Allyn and Bacon , 1997
Buku Teks
Macionis, John J., author
Prentice-Hall, 2000
Buku Teks
Willmore, Joe, author
[American Society for Training and Development Press;, ], 2004
eBooks
McCain, Donald V., author
[American Society for Training and Development Press;, ], 2004
eBooks
McCain, Donald V., author
[American Society for Training and Development Press;;, ], 2005
eBooks