Fauni, Arini Mayang. 2019. “Peningkatan Hasil Belajar Matematika Melalui Model Problem Based Learning (PBL) Berbantuan Card Sort Siswa Kelas Lima”. Math Didactic: Jurnal Pendidikan Matematika 5 (1), 52-64. https://doi.org/10.33654/math.v5i1.518.