RINGGREN, H. On the Islamic theory of the state. Scripta Instituti Donneriani Aboensis, [S. l.], v. 6, p. 103–108, 1972. DOI: 10.30674/scripta.67072. Disponível em: https://journal.fi/scripta/article/view/67072. Acesso em: 16 jul. 2024.