References
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- K. Shoji (2001), The Policy of Urban Public Transporation (Toshi Koukyou Koutsu Seisaku), Chikura Shobo, pp.165-170. (in Japanese)
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- Y. J. Song and K. Shoji (2014), "Diversification strategy of major private railway companies: Lessons from Japanese case," Journal of Economics & Business Administration (The Kokumin-Keizai Zasshi), Vol. 209, No. 4, pp.1-15.
- T. Saito (1993), Private Railways: Development of Japanese Style railway Management (Shitetu Sangyo: Nihongata Tetsudo Keiei no Tenkai), Koyo Shobo. (in Japanese)