The Role of Strategic Management in Achieving Competitive Advantage Field Study of the Telecommunications Sector in the Republic of Yemen. Sana’a University Journal of Human Sciences, [S. l.], v. 5, n. 3, p. 499–533, 2026. DOI: 10.59628/jhs.v5i3.2110. Disponível em: https://journals.su.edu.ye/index.php/jhs/article/view/2110. Acesso em: 10 sep. 2026.