LENIS FREIRE, Natalia Maria. Proposal to improve the billing process in a service company underthe implementation of the A3 tool. Ingeniería Solidaria, [S. l.], v. 19, n. 2, p. 1–22, 2023. DOI: 10.16925/2357-6014.2023.02.02. Disponível em: https://revistas.ucc.edu.co/index.php/in/article/view/4462. Acesso em: 2 jun. 2025.