KARMANI, K. Peningkatan Aktivitas dan Hasil Belajar Operasi Hitung Pecahan Melalui Problem Based Learning. Journal of Education Action Research, [S. l.], v. 5, n. 3, p. 361–367, 2021. DOI: 10.23887/jear.v5i3.34572. Disponível em: https://ejournal.undiksha.ac.id/index.php/JEAR/article/view/34572. Acesso em: 2 dec. 2024.