HIDAYAT, A. Pendekatan Sistim Bebas Riba dalam Lembaga Koperasi. Unisia, [S. l.], n. 16, p. 55–64, 2016. DOI: 10.20885/unisia.v0i16.5606. Disponível em: https://journal.uii.ac.id/Unisia/article/view/5606. Acesso em: 4 may. 2024.