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                           Y., Yi, M. J., Lee, J. M.,  Ahn, K. H., Won, J. H., Moon, S. H. and Cho, M. J. (2006).
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                           groundwater monitoring stations.” Journal of Korean Society of Soil and Groundwater
                           Environment, KoSSGE, Vol. 11, No. 2, pp. 56-67 (in Korean).
