Zirak, Mohammad Ali, and Abbas Poya. “Analytical Solution of Biological Population of Fractional Differential Equations by Reconstruction of Variational Iteration Method”. Journal for Research in Applied Sciences and Biotechnology 2, no. 3 (June 23, 2023): 158–162. Accessed October 19, 2026. https://www.jrasb.stallionpublication.com/index.php/jrasb/article/view/247.