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Marselina, Marselina and Virsa, Ria (2019) WILLINGNESS TO PAY (WTP) BY CONTINGENT VALUATION METHOD (CASE STUDY: WASTE MANAGEMENT SERVICES). International Journal of GEOMATE, 17 (62). pp. 59-64. ISSN 2186-2982
Marselina, Marselina and Virsa, Ria (2019) WILLINGNESS TO PAY (WTP) BY CONTINGENT VALUATION METHOD (CASE STUDY: WASTE MANAGEMENT SERVICES). International Journal of GEOMATE, 17 (62). pp. 59-64. ISSN 2186-2982