., Rohmial. “PENGARUH SERVICE DELIVERY SYSTEM TERHADAP LOYALITAS NASABAH PENABUNG”. Jurnal Keuangan dan Bisnis 16, no. 2 (June 5, 2021): 90–112. Accessed November 28, 2024. http://320227.wm3lefoa6.asia/index.php/jkb/article/view/11.