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Reasoning and problem solving: a handbook for elementa-ry school teachers Dahkki KRULIK, Stephen
Almmustuhtton 1993Hildobáiki: Láddejuvvo…
Sajádat: Láddejuvvo…Girji Láddejuvvo… -
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A hand book of aids for teaching junior-senior highschool mathematics Dahkki KRULIK, Stephen
Almmustuhtton 1971Hildobáiki: Láddejuvvo…
Sajádat: Láddejuvvo…Girji Láddejuvvo…