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Estimating Willingness to Pay for Improved Drinking Water Quality Using Averting Behavior Method with Perception Measure
Um, Mi-Jung, (2002)
A constructive approach to air-quality valuation in Korea
Kwak, Seung-Jun, (2001)
Dealing with zero response data from contingent valuation surveys: application of least absolute deviations estimator
Yoo, Seung-Hoon, (2000)