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Korea Agency for Infrastructure Technology Advancement (KAIA) (2019). Development of tram safety management strategy and system, Internal data (in Korean).
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Korea Development Institute (KDI) (2008). Korean preliminary feasibility study guidebook (5th) (in Korean).
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Korea Research Institute for Local Administration (KRILA) (2015). Guideline study for feasibility study in road and traffic sector (in Korean).
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Ministry of Land, Infrastructure and Transport (MOLIT) (2017). Appraisal guidelines for transport facilites investment (sixth edition) (in Korean).
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