AMMAR, Attiya. Broadening of Tax Base: Policy Challenges and the Way Forward. Journal of Public Policy Practitioners, [S. l.], v. 2, n. 2, p. 101–115, 2023. DOI: 10.32350/jppp.22.05. Disponível em: https://journals.umt.edu.pk/index.php/jppp/article/view/4841. Acesso em: 20 aug. 2026.