Rifkin, G. (1988). The ultimate entrepreneur: The story of Ken Olsen and digital equipment corporation. Chicago: Contemporary Books.
শিকাগো স্টাইলে সাইটেশনRifkin, Glenn. The Ultimate Entrepreneur: The Story of Ken Olsen and Digital Equipment Corporation. Chicago: Contemporary Books, 1988.
এমএলএ সাইটেশনRifkin, Glenn. The Ultimate Entrepreneur: The Story of Ken Olsen and Digital Equipment Corporation. Chicago: Contemporary Books, 1988.
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