MOBASHER HASAN. Economic Resilience of Immunization Systems: Development and Validation of the ERIIS Index. Journal of Economics, Finance and Accounting Studies , [S. l.], v. 8, n. 6, p. 18–31, 2026. DOI: 10.32996/jefas.2026.8.6.3. Disponível em: https://al-kindipublishers.org/index.php/jefas/article/view/12678. Acesso em: 17 may. 2026.