The Effect of Frontliner Services and Relationship Marketing on Customer Loyalty at Bank Muamalat Indonesia Madiun Sub-Branch Office. Eksisbank: ekon.syariah dan n.a.perbank. [Internet]. 2023 Dec. 28 [cited 2026 Jan. 14];7(2):210-23. Available from: https://journal.sties-purwakarta.ac.id/index.php/EKSISBANK/article/view/866