K. Na'em and M. 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: JSE, vol. 8, no. 2, pp. 41–54, Dec. 2025, doi: 10.58518/al-musthofa.v8i2.3816.