1.
Mohammed A, Idrees A. Geul - Sinclair ’s non - aggregate theorem - applied empirical study H*. EDUSJ [Internet]. 2006 Jan. 1 [cited 2025 Aug. 6];18(1):97-112. Available from: https://ojs.uomosul.edu.iq/index.php/edusj/article/view/23405