GHOSH, S. .; KUMAR, S. . Numerical Solutions of Fractional Covid-19 Model Using Spectral Collocation Method. Science & Technology Asia, [S. l.], v. 26, n. 4, p. 1–12, 2021. Disponível em: https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/245867. Acesso em: 1 feb. 2023.