RISNAWATI, Risnawati; ARONO, Arono; YUNITA, Wisma. Problem-Based Learning (PBL): How Does it Affect the Speaking Skills of Introvert and Extrovert Students?. Journal of Problem Based Learning in Higher Education, [S. l.], v. 13, n. 1, 2025. DOI: 10.54337/ojs.jpblhe.v13i1.8596. Disponível em: https://journals.aau.dk/index.php/pbl/article/view/8596. Acesso em: 5 dec. 2025.