1. The System of Objects;Baudrilard,1968
2. Possessions and the extended self;Belk;Journal of Consumer Research,1988
3. Collecting in a Consumer Society;Belk,1995
4. Collectors and collecting;Belk;Advances in Consumer Research,1988
5. Vibrant Matter: a Political Ecology of Things;Bennet;Duke University Press. Durham North Carolina,2010