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শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিOhmae, Kenichi. The Invisible Continent Four Strategic Imperatives of the New Economy. 1. USA: Harper Business, 2001.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিOhmae, Kenichi. The Invisible Continent Four Strategic Imperatives of the New Economy. 1. Harper Business, 2001.