Pantry, Sheila, author
Facet Publishing, 2005
Buku Teks
Mathews, Brian, author
[American Management Association, ], 2009
eBooks
Doucett, Elisabeth, author
[American Management Association, ], 2008
eBooks
McColvin, Lionel R., author
UNESCO , 1986
Buku Teks
Rose, Ernestine, author
Columbia University Press, 1954
Buku Teks