Entesar M. Nasr, Amna M. Nasr, Hend M. Elgadi, Amira A. Hashem, and Ambark A. Ashat. 2026. “Fractional Singular Coupled System: Existence Theory via Extended Leggett-Williams Theorem”. Al-Imad Journal of Humanities and Applied Sciences (AJHAS) 2 (1): 731-45. https://al-imadjournal.ly/index.php/ajhas/article/view/99.