Sadiqqa, Ayesha, Anum Khan, Syed Zargham Haider Sherazi, and Samreen Fatima. “Topological Techniques for Studying Solution Sets of Fractional Neutral Delay Differential Equations”. International Journal of Advancements in Mathematics 2, no. 1 (June 30, 2022): 1–18. Accessed May 4, 2024. https://www.scienceimpactpub.com/journals/index.php/IJAM/article/view/553.