SUTRISNO, E. . Penerapan Model Problem Based Learning untuk Meningkatkan Hasil Belajar Matematika Siswa Kelas VI Sekolah Dasar. Indonesian Journal of Instruction, [S. l.], v. 3, n. 3, p. 103–113, 2022. DOI: 10.23887/iji.v3i3.54230. Disponível em: https://ejournal.undiksha.ac.id./index.php/IJI/article/view/54230. Acesso em: 20 des. 2024.