1. HTML manual of style;Aronson,1994
2. Sociomedia: An introduction;Barrett,1992
3. Towards a better theoretical framework for studying learning for educational television;Bates;Instructional Science,1980
4. Seeing is believing: An introduction to visual communication;Berger,1989
5. Topographic writing: Hypertext and the electronic writing space;Bolter,1991