The Impact of Administrative Competencies on the Performance of Employees at Telecom Egypt. The Arab Journal of Administration, Cairo, v. 46, n. 3, p. 189–208, 2026. DOI: 10.21608/aja.2023.244580.1548. Disponível em: https://ajajournal.org/index.php/aja/article/view/925. Acesso em: 27 may. 2026.