Ouda, Eman Hassan. “The Numerical Solution for Solving Nth Order Integro-Differential Equations via Boubaker Scaling Functions”. Al-Qadisiyah Journal of Pure Science 27, no. 1 (February 14, 2022): Math 60-69. Accessed April 21, 2024. https://journalsc.qu.edu.iq/index.php/JOPS/article/view/1478.