ABOU-ZAID, Ahmed S. Measuring Efficiency in Illinois Public Universities: A DEA–SFA Analysis of State Funding and Student Retention. American Journal of Economics and Business Innovation, [S. l.], v. 5, n. 3, p. 38–48, 2026. DOI: 10.54536/ajebi.v5i3.5743. Disponível em: https://journals.e-palli.com/home/index.php/ajebi/article/view/5743. Acesso em: 15 oct. 2026.