ARIANSYAH, K.; NURYAKIN, C. Competition and Mobile Network Operator’s Investment Relationship: A Firm Level Empirical Evidence for Developing Countries. Journal of Telecommunications and the Digital Economy, [S. l.], v. 7, n. 4, p. 17-32, 2019. DOI: 10.18080/jtde.v7n4.205. Disponível em: https://jtde.telsoc.org/index.php/jtde/article/view/205. Acesso em: 22 jan. 2021.