1. Berge ZL 1998 Conceptual frameworks in distance training and education in: D. A. Schneider and Z. L. Berge (Eds)Distance Training: How Innovative Organizations Are Using Technology to Maximize Learning and Meet Business Objectivespp. 19 – 36 (San Francisco, CA: Jossey-Bass)
2. Bernard M 2000 Constructing user-centered websites: the early design phases of small to medium sites. Usability news 2.1 Available at: http://psychology.wichita.edu/surl/usabilitynews/2W/webdesign.htm
3. Borges J Morales I Rodríguez N 1995 Guidelines for designing usable World Wide Web pages Available at: http://www1.acm.org/sigs/sigchi/chi96/proceedings/shortpap/Rodriguez/rn_txt.htm
4. Brake T Walker MW Walker TW 1995Doing Business Internationally: The Guide to Cross Cultural Success(New York: McGraw-Hill)