The Homotopy Analysis Method for Solving Multi- Fractional Order Integro-Differential Equations. Al-Nahrain Journal of Science, [S. l.], v. 14, n. 3, p. 139–143, 2011. Disponível em: https://anjs.edu.iq/index.php/anjs/article/view/849. Acesso em: 9 apr. 2025.