HASNA, H. R.; FAJRIYAH, K.; SAPUTRA, H. J. The Effect of Blended Learning Based on The Problem-Based Learning Model Assisted by Puzzle Media on The Critical Thinking Skills of Fifth Grade Students on Ecosystem Themes. Journal of Education Technology, [S. l.], v. 5, n. 1, p. 14–22, 2021. DOI: 10.23887/jet.v5i1.29770. Disponível em: https://ejournal.undiksha.ac.id/index.php/JET/article/view/29770. Acesso em: 5 may. 2024.