Shank, Patti, author
American Management Association, 2009
eBooks
Deegan, Arthur X., author
Aspen Systems Corp., 1982
Buku Teks
Dewi Salma Prawiradilaga, author
Kencana Prenada Media, 2009
Buku Teks
Santi Maudiarti, author
Kencana Prenada Media, 2009
Buku Teks
Combs, Wendy, author
American Society for Training & Development, 2006
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