Karle, Elizabeth M.
[American Management Association, ], 2009
eBooks
Abram Stephen
[American Library association, American Library association], 2007
eBooks
edited by David Stern
Routledge, 2009
Buku Teks
O`Brein, James M.
[publisher not identified], [date of publication not identified]
Artikel Jurnal
Dyer, Esther R.
Gale Information Guide Library, 1981
Buku Referensi