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Alternative currencies, alternative identities
Boyle, David, (1999)
Lets on low income : new economics working for a just and sustainable economy
Barnes, Helen, (1997)
LETS, "hours" and the Swiss "Business Ring" : alternative currency systems and business development programmes
North, Peter, (1998)
Evaluating competing theories of the shadow economy : some lessons from an English locality
Williams, Colin C., (2010)
Consumer services and economic development
Williams, Colin C., (1997)
The new barter economy : an appraisal of Local Exchange and Trading Systems (LETS)
Williams, Colin C., (1996)