Nasrulloh, N., Saputri, N. D., & Diantoro, A. K. (2025). The Impact of Islamic Service Quality, Complaint Handling, and Margins on Customer Satisfaction in Islamic Financial Institutions: Pengaruh Kualitas Layanan Syariah, Penanganan Keluhan, dan Margin terhadap Kepuasan Nasabah di Lembaga Keuangan Syariah. Az-Zarqa’: Jurnal Hukum Bisnis Islam, 16(1), 115-136. https://doi.org/10.14421/zdfxh932