MAJEED, Abeer. Homotopy perturbation method with modified Riemann –Liouville derivative for solving fractional- time partial differential equations . University of Thi-Qar Journal of Science, University of Thi-Qar, Thi-Qar, Iraq, v. 3, n. 2, p. 163–173, 2012. Disponível em: https://jsci.utq.edu.iq/index.php/main/article/view/395.. Acesso em: 4 apr. 2025.