ASSEFA, Alemayehu; BACHORE, Mebratu Mulatu; DANIEL, Tagesse. The Effectiveness of Problem-Based Learning in Enhancing Learners’ English Language Skills: Meta-Analysis and Systematic Review. Journal of Problem Based Learning in Higher Education, [S. l.], v. 14, n. 1, 2026. DOI: 10.54337/ojs.jpblhe.v14i1.10569. Disponível em: https://journals.aau.dk/index.php/pbl/article/view/10569. Acesso em: 31 mar. 2026.