6Anna Saiti, Georgia Prokopiadou. Post - graduate students and learning environments : Users' perceptions regarding the choice of information sources .The International Information & Library Review,2008(2) : 94- 103
7Nayana Darshani Wijayasundara. Faculty library collaboration: A model for University of Colombo. The International Information & Library Review,2008(3) :188- 198
8OCLC 网站. OCLC. Perceptions of Libraries and Information Resources,2005,question1090. [2008-10-10].http://www. oclc. org/membership/report