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سعد صالح ت. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . and ناجي عبد الامير . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . أ. ع. ., “Statistical thinking skills included in the first intermediate grade math book”, JIR, vol. 16, no. 33, pp. 605–619, Aug. 2022.