Model Problem Based Learning Mempengaruhi Kemampuan Menyelesaikan Soal Cerita Matematika Siswa Kelas IV Sekolah Dasar. JSD [Internet]. 2019 Sep. 9 [cited 2025 Aug. 24];4(2):40-9. Available from: https://journal.ubpkarawang.ac.id/index.php/PGSD/article/view/882