Operational Efficiency in the Age of Convergence: How Service Integration Drives Value in Digital-First Markets. International Journal of Engineering and Computer Science, india, v. 10, n. 12, p. 25695–25708, 2021. DOI: 10.18535/ijecs.v10i12.4677. Disponível em: http://www.ijecs.in/index.php/ijecs/article/view/4677. Acesso em: 5 dec. 2025.