Aji, Mohamad Haris Tantoko, Veryliana Purnamasari, and Siti Khuluqul Khasanah. 2023. “313. Peningkatan Hasil Belajar Matematika Melalui Model Problem Based Learning Berbantuan Alat Peraga Siswa Kelas 4 SD”. Prosiding Seminar Nasional Pendidikan Profesi Guru 1 (1):2797-2806. https://conference.upgris.ac.id/index.php/psnppg/article/view/4131.