Zimmerman, Constance, author
[American Management Association;, ], 2010
eBooks
Feldman, Jeff, author
American Society for Training & Development, 2007
eBooks
Siess, Judith A., author
[American Library association, American Library association], 2003
eBooks
Artikel Jurnal
Breen, George Edward, 1911-, author
McGraw-Hill , 1982
Buku Teks