1. [1] Allan Richard Pred, City-systems in advanced economies: past growth, present processes and future development options,Halsted Press, 1977.
2. [2] Hiroshi Matsubara, Reorganization of Japanese Urban Systems and Internal Structures of Urban Areas in a Globalized Economy and a Declining Population Society, Annals of the Japan Association of Economic Geographers (English Edition),53(5), 2007, pp.3-20.
3. [3] Kazutoshi Abe, The Japanese Urban System from the Standpoint of Large Private Firms' Head Offices and Branch Offices (1995), Geography Review Japan, 73(1), 2000, pp.62-84.
4. [4] Michael Pacione, Urban Geography: A Global Perspective (3rd Edition), Routledge, 2009.
5. [5] Masateru Hino, The territoriality of domestic branch offices of Japanese firms as a noneconomic principle inŽuencing the choice of branch office location., The Science Reports of Tohoku University, 7th Series (Geography), 49(1), 1999, pp.1-22.