By Woo Myung   in Asia Pacific Education Review

ISSN:1598-1037|11|4|553-564

Springer Publishing Company ‎(2010)‎

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By Nam Sung Woo   Myung Nam Jin   Lee Kwang Soon   in Water Environment Research

ISSN:1554-7531|68|1|70-75

Water Environment Federation‎(1996)‎

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