Beyer, H. & Holtzblatt, K.1998. Contextual Design: Defining Customer-centered Systems. San Francisco, CA: Morgan Kaufmann.
2.
Braverman, H. 1974. Labour and Monopoly Capital: The Degradation of Work in the Twentieth Century. New York: Monthly Review Press.
3.
Brown, B. 2001. Studying the Use of Mobile Technology. In B. Brown, N. Green & R. Harper (eds.). Wireless World: Social and Interactional Aspects of the Mobile Age. London: Springer-Verlag.
4.
Dourish, P. 2001. Where the Action Is: The Foundations of Embodied Interaction. Cambridge, MA: MIT Press.
5.
Gibson, J. J.1979. The Ecological Approach to Visual Perception. Boston, MA: Houghton
6.
Heath, C. & Luff, P.2000. Technology in Action. Cambridge: Cambridge University Press.
7.
Hutchby, I. 2001. Conversation and Technology from the Telephone to the Internet. Cambridge: Polity.
8.
Ketola, P. 2002. Integrating Usability with Concurrent Engineering in Mobile Phone Development. Acta Electronica Universitatis Tamperensis. 185. Tampereen yliopislo 2002. ISBN 951-44-5382-4. ISSN 1456-954X. http://acta.uta.fi
9.
Luff, P., Hindmarsh, J. & Heath, C. (eds.) 2000. Workplace Studies: Recovering Work Practice and Informing System Design. Cambridge: Cambridge University Press.
10.
Norman, D. 1999. Affordance, Conventions, and Design. Interactions, May 1999, 38–43.
11.
Säde, S. 2001. Cardboard Mock-ups and Conversations. Studies in Usability in Industrial Design. Helsinki: Taideteollinen korkea-koulu.
