RADY, A. S. A.; RIDA, S. Z.; ARAFA, A. A. M.; RAHIM, H. R. A. A new approach for solving systems of fractional differential equations via natural transform. JOURNAL OF ADVANCES IN MATHEMATICS, [S. l.], v. 12, n. 1, p. 5797–5804, 2016. DOI: 10.24297/jam.v12i1.574. Disponível em: https://www.rajpub.com/index.php/jam/article/view/12-1-574. Acesso em: 19 may. 2024.