The role of strategic leadership in achieving competitive advantage A field study in private hospitals in the capital, Sana’a. Sana’a University Journal of Human Sciences, [S. l.], v. 4, n. 1, 2023. DOI: 10.59628/jhs.v4i1.331. Disponível em: https://journals.su.edu.ye/index.php/jhs/article/view/331. Acesso em: 31 may. 2026.