H. Ismail, Tahir, and طاهر. “On Infinitesimal Approximation of a Continuous Function”. AL-Rafidain Journal of Computer Sciences and Mathematics 7, no. 1 (June 25, 2025): 181–186. Accessed September 10, 2025. https://edusj.uomosul.edu.iq/index.php/csmj/article/view/36601.