GUEYDI, Salah. Zakat and Principles of Taxation: Economic Efficiency, a Comparative Analysis With Taxes. Indonesian Conference of Zakat - Proceedings, [S. l.], p. 301–322, 2022. DOI: 10.37706/iconz.2021.273. Disponível em: https://iconzbaznas.com/submission/index.php/proceedings/article/view/273. Acesso em: 26 oct. 2026.