SUHARTO, U. Zakat as a Special Institution of Public Finance: Reflections from Kitab Al-Amwal of Abu ’Ubayd (d.224/838). Al-Shajarah Journal of the International Institute of Islamic Thought and Civilisation (ISTAC), [S. l.], v. 6, n. 1, 2014. DOI: 10.31436/shajarah.v6i1.138. Disponível em: https://journals.iium.edu.my/shajarah/index.php/shaj/article/view/138. Acesso em: 17 mar. 2026.