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H. Ismail T, طاهر, O. Hamad I, إبراهیم. A Nonstandard Generalization of Envelopes. RJCSM [Internet]. 2025 Jun. 25 [cited 2025 Aug. 3];5(2):73-8. Available from: https://rjps.uomosul.edu.iq/index.php/csmj/article/view/19936