The Effect of Frontliner Services and Relationship Marketing on Customer Loyalty at Bank Muamalat Indonesia Madiun Sub-Branch Office. EKSISBANK (Ekonomi Syariah dan Bisnis Perbankan), [S. l.], v. 7, n. 2, p. 210–223, 2023. DOI: 10.37726/ee.v7i2.866. Disponível em: https://journal.sties-purwakarta.ac.id/index.php/EKSISBANK/article/view/866. Acesso em: 14 jan. 2026.