AHMAD, Sabarudin; SURADILAGA, Aris Sunandar; SHALEH, Lisnawati. Zakat Model by Caliph ?Umar ibn Kha???b: Innovations Towards the Country’s Economic Problems: Innovations Towards the Country’s Economic Problems. Indonesian Conference of Zakat - Proceedings, [S. l.], p. 75–86, 2019. DOI: 10.37706/iconz.2019.161. Disponível em: https://www.iconzbaznas.com/submission/index.php/proceedings/article/view/161. Acesso em: 13 oct. 2026.