"The Effectiveness of a Blended Learning-Based Training Program in Teaching Physics for Developing 21st-Century Skills Among Second-Grade Secondary Students in the Capital Secretariat - Sana’a": . Sana’a University Journal of Human Sciences, [S. l.], v. 5, n. 2, p. 335–353, 2026. DOI: 10.59628/jhs.v5i2.2105. Disponível em: https://journals.su.edu.ye/index.php/jhs/article/view/2105. Acesso em: 15 apr. 2026.