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Mohammed A, عامر, Idrees A, عمار. Geul - Sinclair ’s non - aggregate theorem - applied empirical study H*. EDUSJ [Internet]. 2006 Jan. 1 [cited 2025 Aug. 4];18(1):97-112. Available from: https://rjps.uomosul.edu.iq/index.php/edusj/article/view/17414