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    Problem-Solving Strategies (Problem Books in Mathematics)
    Problem-Solving Strategies (Problem Books in Mathematics)
    from  Arthur EngelUsed - very goodBook - Used - very good
    New €117.69
    You save €28.70 (24%)
    Book€88.99
    You save €28.70 (24%)
    New €117.69€88.99

    Exploring mathematics with your computer (New mathematical library)
    Book€6.99
    €6.99