HARFIAH NINGRUM, G.; FIRMANSYAH, M. Analisis Manajemen Fundrising Umar bin Khattab dan Relevansinya dengan Pengelolaan Zakat di Indonesia. Management of Zakat and Waqf Journal (MAZAWA), [S. l.], v. 1, n. 2, p. 92–109, 2021. DOI: 10.15642/mzw.2020.1.2.92-109. Disponível em: http://jurnalfebi.uinsby.ac.id/index.php/MAZAWA/article/view/391. Acesso em: 6 dec. 2021.