Fitz-enz, Jac, author
McGraw-Hill , 1984
Buku Teks
Morris, Lynn Lyons, author
Sage, 1987
Buku Teks
Nicholson, John, author
BBC Books , 1992
Buku Teks
Conway, Mal, author
[;American Society for Training & Development Press, American Society for Training & Development Press], 2000
eBooks
Gallagher, Winifred
Random House , 1996
Buku Teks