Lawson, R.G., author
Butterworth-Heinemann, 1992
Buku Referensi
Hegar, Kathryn
Houghton Mifflin, 1985
Buku Teks
Hamilton, Cheryl, author
Thomson/Wadsworth, 2011
Buku Teks
West, Donald M., author
Canada Law Book, 2011
Buku Teks
Thompson, Connie, author
[American Society for Training and Development Press;, ], 1998
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