Appleyard, Nancy, author
Learning Matters, 2009
Buku Teks
Younger, Sandra Millers, author
[American Society for Training and Development Press, American Society for Training and Development Press], 2006
eBooks
Koneru, Aruna, author
Tata McGraw-Hill, 2011
Buku Teks
by Ronald Carter ... [et al.]
Routledge, 1997
Buku Teks
Allen, James, author
The Benjamin Cumming Pub. Co., 1987
Buku Teks