Kay, Emanuel
Amacom , 1974
Buku Teks
Breen, George Edward, 1911-, author
American Management Associations, 1983
Buku Teks
Haneberg, Lisa, author
American Society for Training & Development, 2011
eBooks
edited by Mark Kerr
Aslib IMI, 2001
Buku Teks
Library Association Publishing, 1997
Buku Teks