共 50 条
- [27] WILLINGNESS TO PAY (WTP) BY CONTINGENT VALUATION METHOD (CASE STUDY: WASTE MANAGEMENT SERVICES) INTERNATIONAL JOURNAL OF GEOMATE, 2019, 17 (62): : 59 - 64
- [30] Willingness to pay for physician services at a primary contact in Ukraine: results of a contingent valuation study BMC Health Services Research, 13