Mohammed, Amer, and Ammar Idrees. “Geul - Sinclair ’s Non - Aggregate Theorem - Applied Empirical Study H*”. Journal of Education and Science (JES) 18, no. 1 (January 1, 2006): 97–112. Accessed August 6, 2025. https://ojs.uomosul.edu.iq/index.php/edusj/article/view/23405.