The form of the state and the solution to the problem of power concentration (The struggle for power) and achieving development: change for stability and development. Sana’a University Journal of Human Sciences, [S. l.], v. 5, n. 2, p. 148–189, 2026. DOI: 10.59628/jhs.v5i2.379. Disponível em: https://journals.su.edu.ye/index.php/jhs/article/view/379. Acesso em: 4 jun. 2026.