Teller Services Optimization Using Lean Service Approach at PT. ABC. Nusantara Science and Technology Proceedings, Malang, Indonesia, v. 2023, n. 36, p. 168–176, 2023. DOI: 10.11594/nstp.2023.3624. Disponível em: https://nstproceeding.com/index.php/nuscientech/article/view/1062. Acesso em: 25 apr. 2025.