AHMAD SETYAWAN. Penggunaan Model Pembelajaran Problem Based Learning Meningkatkan Hasil Belajar Matematika Materi Barisan dan Deret. Journal for Lesson and Learning Studies, [S. l.], v. 5, n. 1, p. 149–156, 2022. DOI: 10.23887/jlls.v5i1.48460. Disponível em: https://ejournal.undiksha.ac.id/index.php/JLLS/article/view/48460. Acesso em: 24 apr. 2024.