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A Study on Safety Investment Moment for Safety Target
곽상록
Vol. 32, No. 5, pp. 122-128, Oct. 2017

A Study on Safety Investment Moment for Safety Target
곽상록
Vol. 32, No. 5, pp. 122-128, Oct. 2017

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pISSN : 1229 - 9197
eISSN : 1875 - 0052

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