Na'em, Khairun, and Maksum Muktie. “The Effect of Savings Shuttle Services and  Communication Ethics KSPPS. BMT NU East Java on Member Satisfaction(Case Study at BMT NU Lenteng Branch): (Case Study at BMT NU Lenteng Branch)”. Al-Musthofa: Journal of Sharia Economics 8, no. 2 (December 31, 2025): 41–54. Accessed January 16, 2026. https://ejournal.iai-tabah.ac.id/index.php/musthofa/article/view/3816.