Norton, Peter
The Peter Norton programmer's guide to the IBM PC
Microsoft Corp., 1985
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Norton, Peter
Peter norton's inside the PC
Brady Pub., 1993
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Robertson, S. Ian
Problem solving
Psychology Press, 2001
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Hodnett, Edward, editor
The Art of problem solving how to improve your methods
Harper & Brothers, 1955
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Fox, William M
Effective group problem solving/ William M Fox
Jossey Bass, 1987
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