Teo Francis. Maths Problem-Solving Stratergies-3. Singapore Asia Pub.
Chicago-čujuhus (17. p.)Teo Francis. Maths Problem-Solving Stratergies-3. Singapore Asia Pub.
MLA-čujuhus (9. p.)Teo Francis. Maths Problem-Solving Stratergies-3. Singapore Asia Pub.
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