“A New Efficient Method for Solving Helmholtz and Coupled Helmholtz Equations Involving Local Fractional Operators”. University of Thi-Qar Journal of Science 6, no. 4 (June 25, 2018): 153–157. Accessed November 23, 2024. https://jsci.utq.edu.iq/index.php/main/article/view/81.