The use of willingness to pay experiments : Estimating demand for piped water connections in Sri Lanka / Subhrendu K. Pattanayak, Caroline van den Berg, Jui-Chen Yang, George Van Houtven. - Washington : World Bank, 2006. - 33, [14] p. : ill. ; 27 cm.см.. - (Policy research working paper; 3818). - Bibliogr.: p. 30-32[MFN: 10568]

UDC: 626/627(548.7)

• Pattanayak, Subhrendu K.; 

Subjects:
- წყლის სექტორი შრი-ლანკაში;

E 22.524/4 = 626/627(548.7)/U-88 - Civil Education Reading Hall