1.
Entesar M. Nasr, Amna M. Nasr, Hend M. Elgadi, Amira A. Hashem, Ambark A. Ashat. Fractional Singular Coupled System: Existence Theory via Extended Leggett-Williams Theorem. Al-Imad J. Humanit. Appl. Sci. 2026;2(1):731-745. Accessed May 11, 2026. https://al-imadjournal.ly/index.php/ajhas/article/view/99