Kenton, Barbara, author
Butterworth-Heinemann, 2010
Buku Teks
Smith, Rita Mehegan, author
American Society for Training & Development, 2011
eBooks
Mansor, Zuraina Dato, author
Universiti Putra Malaysia, Department of Management and Marketing, Faculty of Economics and Management, 2012
Artikel Jurnal
Davis, Keith, 1918-, author
McGraw-Hill, 1957
Buku Teks
Davis, Eric, author
[American Society for Training & Development Press, American Society for Training & Development Press], 2003
eBooks