HADI, Atikah Rahmatil; YULLYS HELSA; DINA AMSARI; FARDATIL AINI AGUSTI. Improvement of Student Learning Outcomes in Flat Shapes Material with the Problem-Based Learning Model. Journal of Practice Learning and Educational Development , [S. l.], v. 6, n. 3, 2026. DOI: 10.58737/jpled.v6i3.1321. Disponível em: https://digitalpress.gaes-edu.com/index.php/jpled/article/view/1321. Acesso em: 15 aug. 2026.