Adil AL-Rammahi, Dafar Zuhier Ali,. “Power Series Methods for Solving Fractal Differential Equations Using Least Squares Approximations”. Mathematical Statistician and Engineering Applications 71, no. 3s3 (August 2, 2022): 115–129. Accessed March 28, 2024. https://www.philstat.org/index.php/MSEA/article/view/353.