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The Art of Problem Posing
Author:
Steve Phelps
"What if each attribute were not so; what could it be then?"
Brown & Walter, 2005
https://www.amazon.com/Art-Problem-Posing-Stephen-Brown/dp/0805849777
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גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
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