1. Witten, Ian H. and David Bainbridge. 2003. How to build a digital libary. San Francisco: Morgan Kaufman.

2. Copyright Advisory Network website. http://www.librarycopyright.net/ (accessed October 2, 2008)

3. Nielsen, Jakob. 2003. Useit.com. Alertbox: Usability 101. http://www.useit.com/alertbox/20030825.html

4. Stern, David ed. 1999. Digital libraries: philosphies, technical design considerations, and example scenarios. New York: Haworth Press.

5. Usability.gov website

6. Thomas, Charles F, and Linda Griffin. Who will create the Metadata for the Internet?

7. Cathro, Warwick, and Tony Boston. 2003. Development of a digital service architecture at the National Library of Australia. National Library of Australia. Staff papers.

8. Koulouris, Alexandros, and Sarantos Kapidakis. Considerations on policies of University digital collections. Ionian University.

9. Lawrence, D. and Tavakol, S. 2007. Balanced website design: optimizing aesthetics, usability and purpose. London:Springer

10. Blanford, A. and Buchanan, G. 2003. Usability of digital libraries. http://www.ieee-tcdl.org/Bulletin/v1n1/blanford/blanford.html.