WEISS, H. The 1889-90 Famine and the Mahdiyya in the Sudan: An attempt to implement the principles of an Islamic economy. Studia Orientalia Electronica, [S. l.], v. 85, p. 163–192, 2014. Disponível em: https://journal.fi/store/article/view/44006. Acesso em: 16 aug. 2022.