ZULKARNAIN. Cryptocurrency system as a digital currency in Islamic economics. Zabags International Journal of Islamic Studies, [S. l.], v. 2, n. 1, p. 102–110, 2025. DOI: 10.61233/zijis.v2i1.36. Disponível em: https://e.journal.zabagsqupublish.com/index.php/zijis/article/view/36. Acesso em: 29 apr. 2026.