Não informado. (2010). Economic Journal of Hokkaido University. Hokkaido University, Graduate School of Economics and Business Administratio.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Economic Journal of Hokkaido University. Sapporo, Japão: Hokkaido University, Graduate School of Economics and Business Administratio, 2010.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Economic Journal of Hokkaido University. Hokkaido University, Graduate School of Economics and Business Administratio, 2010.
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