Lehrer, R. N. (1965). The management of improvement: Concepts, organization, and strategy. New York: Reinhold Publishing Corporation.
শিকাগো স্টাইলে সাইটেশনLehrer, Robert N. The Management of Improvement: Concepts, Organization, and Strategy. New York: Reinhold Publishing Corporation, 1965.
এমএলএ সাইটেশনLehrer, Robert N. The Management of Improvement: Concepts, Organization, and Strategy. New York: Reinhold Publishing Corporation, 1965.
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