8Polanka. S. Off the shelf: Patron - Driven Acquisition [ J ] . Booklist. 2009,105 ( 1 ) : 121.
9Sutton L. Collaborating with our patrons:Letting the us- ers select [ C ] . Charlotte, North Carolina : ACRL Eleventh National Conference,2003 (4) : 10-13.
10Dinkins D. Individual title requests in PDA collections: A small university library' s experience [ J ] . College & Re- search Libraries News ,2011 ( 5 ) :249 - 252,255.