ARMAYA, N.; FUADI, A.; KHAIRUNNISA. Implementasi Produk Tabungan Haji IB Makbul di Bank SUMUT Syariah KCP Stabat. Al-Istimrar: Jurnal Ekonomi Syariah, [S. l.], v. 1, n. 1, p. 49–57, 2024. DOI: 10.59342/istimrar.v1i1.56. Disponível em: https://www.jurnal.insan.ac.id/index.php/istimrar/article/view/56. Acesso em: 9 oct. 2025.