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Hironori Kato (2012), Urban Rail Development in Tokyo: Integrated Public Transportation Planning, Presentation at a IGES ERI Policy Research Workshop on The University of Toky.
International Newspapers (2015), Fourth Anniversary of the Opening on Gimhae Light Rail Transit Difficulties in Elimination of the deficit.
Jung H. Y., KIM J. Y. (2014), A Study on Senior Citizen Free Transport Policy Improvement of Urban Railway Transportation, J. Korean Soc. Transp., 32(3), Korean Society of Transportation, 256-265.
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Lee H. J. (2010), The Influence of the Service Orientation and Quality on Employee and Customer Performance in the Urban Railway Operating Company , Doctoral Dissertation of Seoul National University of Science and Technology Graduate School.
Lee S. O., Whang B. J. (2014), Study on Factors of Service Gap by Way of Survey to Satisfy Customers in Using MIMIC: Aspect of the Case of Metro 9, The Korean Society for Railway, 41-49.
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Sunday Newspapers (2015), CS Ideas Contest Held for Improving Customer Satisfaction of Incheon Transit Corporation.
The Korea Transport Institute (2014), National Transport DB Center National Transport Research and DB Development Project.
Yoon S. H. (2007), The Development of Service Quality Models for Subway Passengers, Master's Degree Thesis of Han Yang University Graduate School.