Ahmad. A. H. Mtawal, Sameehah. R. Alkaleeli. A new modified homotopy perturbation method for fractional partial differential equations with proportional delay . JAM [Internet]. 2020 Oct. 11 [cited 2024 Nov. 21];19:58-73. Available from: https://rajpub.com/index.php/jam/article/view/8876