GHUFRON, M. Ali; ERMAWATI, Siti. The Framework of Cooperative Problem-based Learning (Co-PBL) to Promote Verbal Creativity in EFL Writing: Is It Feasible?. Jurnal Arbitrer, [S. l.], v. 5, n. 2, p. 81–93, 2018. DOI: 10.25077/ar.5.2.81-93.2018. Disponível em: https://arbitrer.fib.unand.ac.id/index.php/arbitrer/article/view/116. Acesso em: 27 feb. 2026.