A. da S. Pascoal, “THE ROLE OF TAX INSPECTION AGENT IN FIGHTING THE INFORMAL ECONOMY IN ANGOLA 2020/2024”, EIC, pp. 158–177, Oct. 2025, Accessed: Jun. 13, 2026. [Online]. Available: https://periodicos.newsciencepubl.com/editoraimpacto/article/view/9215