E. Saribanon, A. Nugroho, S. Nurhayati, N. I. Susanthi, and D. Ratnasari, “Enhancing Customer Satisfaction in Commuter Rail Services through Multimodal Integration and Digital Payment Adoption: A Case Study in Greater Bandung”, DIJEFA, vol. 6, no. 4, pp. 3701–3708, Oct. 2025.