Enadi, Myasar Obaid, and Majeed A. AL-Jawary. “A Numerical Study of Initial and Boundary Conditions Problem for Wave Equation Using the Operational Matrices”. Ibn AL-Haitham Journal For Pure and Applied Sciences 38, no. 4 (October 20, 2025): 376–397. Accessed October 24, 2025. https://jih.uobaghdad.edu.iq/index.php/j/article/view/4097.