حســان يحيـى عبـد الغفـار. The impact of unemployment on economic growth in the Republic of Yemen: Standard study during the period 1990-2019. Humanities and Educational Sciences Journal, [S. l.], v. 8, n. 19, p. 514–536, 2021. DOI: 10.55074/hesj.v8i19.375. Disponível em: https://hesj.org/ojs/index.php/hesj/article/view/375. Acesso em: 27 aug. 2026.