UMAMAH, U.; HASAN, M. . Pengaruh Pelayan dan Etika Bisnis Terhadap Loyalitas Nasabah di BMT UGT Nusantara Capem Labang. Al-Insyiroh: Jurnal Studi Keislaman, [S. l.], v. 2, n. 1, p. 57–65, 2016. DOI: 10.35309/alinsyiroh.v2i1.263. Disponível em: http://jurnal.staidhi.com/index.php/alinsyiroh/article/view/263. Acesso em: 29 dec. 2025.