lesmana ceta indra. The Effect of Marketing IB Hijrah Savings Products on Customer Trust and Purchase Tension Through the Referral Program at Bank Muamalat Mojokerto. aks [Internet]. 2024 Aug. 30 [cited 2025 Sep. 26];4(1). Available from: https://ejournal.iaingorontalo.ac.id/index.php/ak/article/view/1055