Trends in Problem Based Learning Model Based on Lesson Study on Learning Outcomes: A Bibliometric Analysis. Jurnal Penelitian Pembelajaran Fisika, [S. l.], v. 11, n. 1, p. 62–71, 2025. DOI: 10.24036/jppf.v11i1.9. Disponível em: https://jppf.ppj.unp.ac.id/index.php/jppf/article/view/9. Acesso em: 6 jun. 2025.