Brumfiel, Charles Francis, 1914-
Fundamental concepts of elementary mathematics
Addison-Wesley, 1962
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Brumfiel, Charles Francis, 1914-
Introductin to mathematics : with supplementary problems
Addison-Wesley , 1963
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Mathematics in action : algebraic, graphical, and trigonometric problem solving
Ralph Bertelle
Pearson, Addison Wesley, 2008
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Keedy, Mervin L.
A problem-solving approach to intermediate algebra
Addison-Wesley, 1986
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Sloyer, Clifford W.
Algebra and its applications : a problem solving approach
Addison-Wesley, 1970
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