Goodrich, Jeanne, author
[American Library association, American Library association], 2007
eBooks
Ward, Dan L., author
[American Management Association, ], 2013
eBooks
Dupuy
Sijthoff & Noordhoff, 1978
Buku Teks
Hoevemeyer, Victoria A., author
American Management Association, 2006
eBooks
Forsythe, David P., 1941-, author
Cambridge University Press, 2000
Buku Teks