Improving Students’ Critical Thinking through Problem-Based Learning in English Class at Grade XI SMK Swasta GKPI 1 Pematangsiantar. Journal of Social Humanities and Education, [S. l.], v. 1, n. 3, p. 304–313, 2026. DOI: 10.65310/0h43ka93. Disponível em: https://scriptaintelektual.com/scripta-humanika/article/view/643. Acesso em: 22 feb. 2026.