Emerald, 2018
eBooks
Phillips, Patricia Pulliam, author
American Society for Training & Development, 2012
eBooks
Jauch, Lawrence R., author
McGraw-Hill, 1988
Buku Teks
Boulton, William R., author
Macmillan, 1984
Buku Teks
Benson, Robert J., author
John Wiley & Sons, 2014
Buku Teks