“Comparison Between the Heun’s and Haar Wavelet Methods for Solution Differential-Algebraic Equations (DAEs)”. AL-Rafidain Journal of Computer Sciences and Mathematics 6, no. 3 (December 2, 2009): 183–196. Accessed June 25, 2026. https://csmj.uomosul.edu.iq/index.php/csmj/article/view/36441.