Rady ASA, Rida SZ, Arafa AAM, Rahim HRA. A new approach for solving systems of fractional differential equations via natural transform. JAM [Internet]. 2016 Feb. 17 [cited 2024 Nov. 23];12(1):5797-804. Available from: https://rajpub.com/index.php/jam/article/view/12-1-574