PÉREZ PILLAJO, S. C.; ESCOBAR VALDIVIESO , A. R.; LÓPEZ LÓPEZ , J. E.; BONILLA TENESACA, J. R. The application of Problem Based Learning to improve verbal communication in EFL students’ level A2. Arandu UTIC, [S. l.], v. 11, n. 2, p. 1807–1820, 2024. DOI: 10.69639/arandu.v11i2.372. Disponível em: http://uticvirtual.edu.py/revista.ojs/index.php/revistas/article/view/372. Acesso em: 25 dic. 2024.