Khalil, M.
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 The Effect of Using the Six-dimensional Strategy (PDEODE) in the Collection of Third-average Students and Providing them with Mathematical Concepts.
<em>Journal Of Tikrit University For Humanities - مجلة جامعة تكريت للعلوم الانسانية, 27</em>(1), 344-327.
doi:10.25130/hum.v27i1.931