Nasrulloh, Nasrulloh, Nensy Dwi Saputri, and Aris Kusumo Diantoro. 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): 115-36. https://doi.org/10.14421/zdfxh932.