Thompson, Leon Whitey
Thompson , 1995
Buku Teks
Meyer, Kathy
[American Society for Training & Development;, ], 1997
eBooks
Shahraz, Qaisra
Mizan Publika, 2017
Buku Teks
Portland : Glimmer Train Inc
Majalah, Jurnal, Buletin
In Hun
Foreign Languages Pub. House, 2014
Buku Teks