The Role of Economic Intelligence in Achieving a Sustainable Competitive Environment: A Case Study of Algeria Telecom, Mobilis, Djezzy, and Ooredoo. Journal of Informatics Education and Research, [S. l.], v. 5, n. 2, 2025. DOI: 10.52783/jier.v5i2.2802. Disponível em: https://www.jier.org/index.php/journal/article/view/2802. Acesso em: 30 apr. 2026.