Ghoting, Saroj Nadkarni, author
[American Library association, American Library association], 2006
eBooks
Pantry, Sheila, author
Facet Publishing, 2003
Buku Teks
Rogers, Jenny, author
McGraw-Hill, 2011
Buku Teks
Scott, Gini Graham, author
American Management Association, 2009
eBooks
Brause, Rita S., author
RoutledgeFalmer , 2000
Buku Teks