SUMBER HUKUM DALAM SISTEM EKONOMI ISLAM. PILAR, [S. l.], v. 12, n. 2, p. 66–78, 2021. DOI: 10.26618/431t1x92. Disponível em: https://journal.unismuh.ac.id/index.php/pilar/article/view/7623. Acesso em: 6 mar. 2026.