Keedy, Mervin L.
A problem-solving approach to intermediate algebra
Addison-Wesley, 1986
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Robertson, S. Ian
Problem solving
Psychology Press, 2001
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Billstein, Rick
A problem solving approach to mathematics for elementary school teachers
Pearson Addison Wesley, 2007
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Snover, Stephen L.
Mathematical problem-solving with the microcomputer project to increase your basic programming skill
Prentice-Hall, 1982
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The psychology of problem solving
edited by Janet Davidson, Robert J. Sternberg
Cambridge university , 2003
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