Hacker, Deborah Grafinger, author
[American Society for Training and Development Press, American Society for Training and Development Press], 2001
eBooks
edited by R.S. Sharpe
Academic Press, 1982
Buku Teks
Athanassios Jimoyiannis, editor
Springer, 2012
eBooks
Rossman, Gretchen B., author
Sage, 2003
Buku Teks
edited by Douglas A. Grouws
Macmillan Library Reference, 1992
Buku Referensi