SAEED, Abdulkafi Mohammed. Improved Rotated Finite Difference Method for Solving Fractional Elliptic Partial Differential Equations. American Scientific Research Journal for Engineering, Technology, and Sciences, Jordan, v. 26, n. 1, p. 261–270, 2016. Disponível em: https://asrjetsjournal.org/American_Scientific_Journal/article/view/2216. Acesso em: 26 oct. 2025.