The Fractal-Fractional Mathematical Model Analysis of the Impact of HIV/AIDS on the Working-Class in Ethiopia. Journal of Nonlinear Modeling and Analysis, [S. l.], v. 7, n. 3, p. 997–1036, 2025. DOI: 10.12150/jnma.2025.997. Disponível em: https://www.global-sci.com/index.php/jnma/article/view/13843. Acesso em: 6 dec. 2025.