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Journal of Korean Society of Industrial and Systems Engineering :: Vol.42 No.4 pp.69-75
DOI:https://doi.org/10.11627/jkise.2019.42.4.069
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Journal of Korean Society of Industrial and Systems Engineering :: Vol.42 No.4 pp.69-75
			DOI:https://doi.org/10.11627/jkise.2019.42.4.069