The use of willingness to pay experiments estimating demand for piped water connections in Sri Lanka
| Awduron Eraill: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Washington, D.C.
World Bank
2006.
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| Cyfres: | Policy research working paper
no.3818 |
| Pynciau: |