SIBURIAN, F.; SUTAMA, S. Problem-Based Learning Model with Video Media to Improve Writing Skills. Indonesian Journal of Educational Research and Review, [S. l.], v. 4, n. 2, p. 261–270, 2021. DOI: 10.23887/ijerr.v4i2.39929. Disponível em: https://ejournal.undiksha.ac.id/index.php/IJERR/article/view/39929. Acesso em: 21 dec. 2024.