Abd, Alaa Muhsien. “Solution of Singular Fuzzy Fraction Order Control Systems via Drazin Inverse”. Journal of Kufa for Mathematics and Computer 4, no. 3 (December 30, 2017): 12–20. Accessed September 27, 2026. https://journal.uokufa.edu.iq/index.php/jkmc/article/view/2101.