Koontz, Harold
Essentials of management
McGraw-Hill, 1974
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Lahey, Benjamin B.
Essentials of psychology
McGraw-Hill, 2003
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Lahey, Benjamin B.
Essentials of psychology
2002
 Multimedia
Schiller, Bradley R.
Essentials of economics
Irwin, McGraw-Hill, 2005
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Sobti, R.C.
Essentials of biotechnology
CRC Press, Taylor & Francis Group, 2009
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