Meade, Richard A.
Effective English: workbook 3 and 4
Belmont, 1964
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A creative partnership and an innovative and effective multimedia english language learning and teaching website
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Drucker, Peter Ferdinand, 1909-2005
The effective executive
Harper & Row, 1996
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Achua, Christopher F.
Effective leadership
South Western Cengage Learning, 2013
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Cook, Marshall J. ,author
Effective coaching
McGraw-Hill, 2011
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